Rank & Rent Attack Plan — All Niches Ranked

Every candidate niche from the research library scored for rank-and-rent attack value, then the top five mapped out in full: regions, keyword targets, site blueprints, buyers, sequencing, and risks. Demand data is fresh Google Ads volume (United States, October 2026); competitive findings come from the 37 live teardowns captured October 5–8, 2026.

The call: five niches cleared the bar — Patio Covers (94), Fence & Driveway Gate (89.5), Water Filtration (89), Garage Epoxy (84), Windows & Doors (83). All five share the same signature: real buyer demand, high job tickets, and organic results that a well-built resource site can crack with published cost content. Build order runs Patio and Fence first (both peak in spring — a winter build owns the peak), Filtration third (steady year-round), Garage Epoxy fourth (fastest to rank), Windows fifth (biggest rent upside, slowest to rank). Two to four sites live at any time, never more. The model stays: one region, one niche, one buyer, $500–800 per month flat rent.
37
Niches Scored
5
Cleared The Attack Bar
94 / 100
Top Score — Patio Covers
6 Months
Full Build Order

The pattern What the top five share

  • Cost questions sit unanswered on every search page — publishing prices is the ranking wedge in all five
  • Job tickets of $2,000–$25,000 mean one to three qualified inquiries a month covers the rent
  • No credential or expertise burden on the site itself — publishable as a planning and installer-matching resource
  • Snow-free demand: work continues year-round in the target regions

The discipline What stays true

  • Organic results decide rankability — map-pack review counts do not
  • No fake business profiles, no invented credentials, reviews, crews, or warranties
  • Every niche passes a demand-and-buyer check before a dollar of spend — the gate is on spend, builds are nearly free
  • Exclusive leads at $75–125 in a 30-day pilot first; flat rent is earned with evidence

Scoring Model

Each niche scored 0–5 on five dimensions, weighted, out of 100. The weights encode what this business actually needs: a site that can rank with content alone is worth more than a big market we cannot crack, and a $15,000 job is worth more than a hundred $300 ones.

DimensionWeightWhat it measures
Organic openness30%Can a resource site rank for the money queries? Evidence: who holds organic page one in the teardowns — forums, retailers, and lead-generation networks mean open; rich established contractors mean closed. This is the heaviest weight because it is the correction that fixed the earlier over-reach (weak map packs are not proof of organic opportunity)
Lead value and rent fit25%Typical job ticket and who writes the check. High tickets mean few inquiries justify rent; low tickets mean we need volume the model cannot sustain
Demand20%Monthly United States volume and cost-per-click on the commercial and cost keyword families. Cost-per-click doubles as the lead-value proxy and a read on buyer urgency
Claims and credential safety15%Inverse score: how much the niche drags in licensing, chemical or structural hazards, regulatory claim rules, or expertise we cannot honestly publish without a verified partner
Region and season fit10%Does the work run year-round in snow-free regions, and does the demand calendar reward a winter build?
Hard gates that override the score: a niche is struck outright if its core scope is hazard-adjacent in a way that forces partner-vetting overhead (asbestos, unventilated chemical work), or if its cost-per-ticket math cannot support even $500 rent at realistic inquiry volume. Popcorn ceiling removal scores 65 and is still struck. TV mounting scores 70 and is still struck. Scores rank survivors; gates remove them.

Full Ranking — All 37 Niches

Sorted by weighted score. The verdict column says what happens to each row: attack now, wave two, cluster partner, conditional, struck, or parked. Demand figures are the money-head-term volume and cost per click from the Google Ads pull.

#NicheScoreDemand signalWhy it lands hereVerdict
1Patio Covers & Pergolas941,600 installs / $17.13, low ad competitionPage one is forums and retailers; 2 of 8 sites publish any prices; $8,000–$30,000 jobsAttack 1
2Fence & Driveway Gate89.59,900 cost / $8.23; gate installs $12.94Los Angeles pack top three have no websites; EMDs rank; gate automation unowned and recurringAttack 2
3Whole-House Water Filtration8933,100 installs / $18.81, low ad competitionZero prices published in Dallas or LA; Phoenix winner owns the pack on price grids; recurring filter revenueAttack 3
4Garage Epoxy & Makeover848,100 cost / $10.64, steady all yearPrice-in-title takes number one Houston; LA's top three publish zero prices; wide-open AI answer layerAttack 4
5Windows & Doors8322,200 cost / $22.07, dead steadyFranchises on top but independents rank directly below with cost tables; cost and energy-credit gaps undefendedAttack 5
6Kitchen & Bath Remodeling8074,000 near-me / $17.68Enormous demand and tickets, but content competitors are rich and real photography convertsWave 3
7Concrete & Masonry77.54,400 patio cost / $9.41, low competitionOnly 5 of 36 organic listings are contractor sites; map-pack bar is 6 reviewsWave 2
8HVAC76201,000 near-me / $46.82Best economics in the entire study — and the most saturated marketing niche on earthNot for now
9Roofing7418,100 cost / $19.96Established players plus storm-chasing lead-gen machines; take overflow via cost content laterNot for now
10Outdoor Kitchen & BBQ Island741,000 cost / $3.26$15,000+ tickets but thin demand — best used as patio's cluster sibling, not standaloneCluster partner
11Stucco (proven fleet)721,600 cost / $7.30, low competitionAlready proven in-house with the Los Angeles fleet — maintain and monetize, not a new attackOwn it already
12Irrigation & Smart Sprinkler728,100 installs / $5.15, low competition 28Install-only framing keeps it clean; spring peak 18,100; rebate research trafficWave 3
13Attic Insulation & Weatherization728,100 cost / $9.69, steadyNear-zero competition; energy-bill angle; rebate content goldWave 3
14Pool Resurfacing71.54,400 cost / $14.31High click price, Sun Belt only, existing-pool owners — solid cluster add for backyard playsWave 3
15Termite Inspection & Treatment719,900 cost / $17.59Good demand and endemic South and West; partner needs pest licensing (vetting overhead)Wave 3
16Water Damage Restoration70.518,100 near-me / $52.09Priciest leads in home services but emergency players are established and insurance claims need careNot for now
17TV Mounting7018,100 service / $11.86Huge volume, $100–$300 tickets — fails the rent math on hard gateStruck (ticket)
18EV Charger Installation69.53,600 cost / $10.54Rebate tailwind, planned purchase, electrician partner requiredWave 3
19Artificial Grass & Turf69.53,600 cost / $7.04Water-restriction tailwind, strong visual demo — backyard cluster candidateCluster partner
20Tree Service699,900 cost / $11.48Cost, permit, and emergency page gaps exist but Local Services Ads crowd the money layer in LAWave 3
21Foundation Repair & Waterproofing698,100 cost / $22.69$5,000–$15,000 jobs; structural claims need care; established buyersWave 3
22Solar6760,500 cost / $12.12National lead-gen dominance; incentive content rots by stateSkipped
23Sauna Installation67thinQuirky sleeper with real tickets but demand too thin to test earlyCluster partner
24Aging-In-Place Modifications66.5320 remodeling / $3.09Page one is placeholders — and demand confirmed tiny. Empty results meant low demand, not just low competitionParked
25Senior Moving Services661,300 / $13.65Long research cycle; pairs with aging-in-place if that ever activatesParked
26Popcorn Ceiling Removal656,600 cost / $7.40, low competition 22Weak packs and lead-gen EMDs rank — but asbestos-adjacent scope fails the hazard gateStruck (hazard)
27House Painting (Exterior)64.51,900 cost / $10.52Steady pair to the stucco fleet; moderate everythingCluster partner
28Rodent Exclusion & Rat Proofing64170 exclusion cost / $8.88Nobody sells the actual niche — but exclusion-specific demand is too thin for a standalone testCluster partner
29Personal Injury Law / Dental / Med Spa64110,000–301,000 near-meBest audience economics in the study; expert-content and regulatory gate make these premium hand-buildsParked premium
30Home Gym Conversion6420 / —Negligible demand — garage makeover's cluster sibling at bestCluster partner
31Plumbing63.5823,000 near-me / $39.45Massive demand, $200–$2,000 jobs, saturated — the repipe slice is the only exceptionNot for now
32Smart Home Installation62.5210 cost / $3.09, low competition 8Almost zero demand — the low competition reflects a quiet market, not an open oneParked
33Electrical621,900 panel cost / $10.31Big no-website gap but mid-ticket jobs and licensed-partner requirementWave 3
34Shed & Custom Outbuilding61.520 custom cost / $1.23Demand too thin at our price point — prefab retail owns the queryParked
35Pet Door Installation61.5880 / $3.42Low ticket fails rent mathStruck (ticket)
36Drought-Tolerant Landscaping59.510 cost / $2.36Regional-only demand, too thin to test — turf covers the same buyer betterParked
37Bathtub Refinishing & Reglazing598,100 cost / $8.65$350–$500 tickets plus chemical-hazard partner vetting — only viable with a rental-turnover operatorConditional

Attack 1 · Patio Covers & Pergolas

Score 94 · Build first The softest competitive field in the research and the one with the best timing: demand nearly triples from December to March, so a winter build is sitting at full strength when the buying season opens.

2 of 8
Ranked Sites Publish Prices
$8k–$30k+
Project Value
3,600
Kit Searches (bridge audience)
Feb–Apr
Demand Peak (about 3× December)

Regions and order

  • First: Phoenix East Valley — Mesa, Gilbert, Chandler, Scottsdale. Page one for patio covers there is Reddit, Quora, and Home Depot; the map pack holds only two businesses
  • Second: Inland Empire (Riverside, Ontario, Temecula) — once a California licensed partner is attached
  • Then: San Antonio and Austin suburbs, Sacramento suburbs, Las Vegas, Tampa

Keyword family (monthly / cost per click)

  • Commercial: patio covers near me 2,400 / $12.77 · patio cover installation 1,600 / $17.13 (low ad competition) · patio cover installers near me 590 / $12.72
  • Cost: patio cover cost 880 · covered patio cost 880 · how much does a patio cover cost 320
  • Research and bridge: aluminum patio covers 9,900 · patio cover kit 3,600 · pergola vs patio cover 260

Site blueprint

  • Cost guide first (by-type table $8,000–$30,000+, per-square-foot math, what moves the number) — the proven ranking mechanic in this niche
  • Three customer paths: install money pages, the kit-versus-installed bridge content, the comparisons hub
  • Permits-as-service block, financing anchors, match-your-home visual, multi-step quote quiz, photo upload
  • Call tracking on every page — nobody in this niche has it

Buyer and monetization

  • Buyer: established patio cover installer with crews and financing options; backup: outdoor living generalist
  • $75–125 exclusive leads in pilot → $600–800 flat rent. One $15,000 job pays their year
  • Cluster path: pergola and outdoor kitchen sibling sites once the parent ranks (distinct intents, separate buyers)
Risk to watch: if local demand turns out to be mostly sub-$500 kit shoppers, the lead business thins out. The demand gate before build separates the two audiences at the keyword level. Affiliate income from kits stays a disclosed bonus layer — never counted in the plan.

Attack 2 · Fence & Driveway Gate

Score 89.5 · Build second The clearest "independent can win" evidence in the whole library: an exact-match domain already ranks in Los Angeles and the map pack's top three have no websites at all. Gate automation — operators, keypads, access control, same-day operator repair — is the niche's unclaimed recurring-revenue line.

$2.4k–$9.5k
Project Anchors
720
Gate Installs / $12.94 CPC
9,900
Fence Cost Searches
Mar
Demand Peak (22,200)

Regions and order

  • First: Dallas–Fort Worth suburbs — huge 1990s–2000s housing stock aging into fence replacement, year-round install season, organic page one mixed with retailers and Reddit pricing threads
  • Second: Phoenix (two of three pack leaders have no websites)
  • Then: Houston, San Antonio, Tampa, Atlanta, Nashville — wave-two regions already mapped

Keyword family (monthly / cost per click)

  • Commercial: fence installation near me (thousands per metro) · driveway gate installation 720 / $12.94 (low ad competition) · fence company near me
  • Cost: fence installation cost 9,900 / $8.23 · fence cost per foot (by material: chain-link to wrought iron) · gate cost anchors $1,900–$8,000
  • Research: wood vs vinyl fence, fence permit rules, gate automation and access control

Site blueprint

  • Cost-per-foot tables by material with project anchors — the published ranges currently win snippets in every market
  • Gate automation as a first-class service trio: operator brands, keypads, intercoms, same-day operator repair (the recurring line nobody covers)
  • The honest block the whole field skips: "we do not sell your information to four contractors," material-grade proof versus store-grade, employed crews versus subcontracted leads
  • Service-area pages per suburb with real housing-stock detail

Buyer and monetization

  • Buyer: fence contractor who also does gates and operator work (or two buyers — fence installer and gate automation specialist on separate sites later)
  • $75–125 exclusive leads → $700–1,000 flat rent — gate jobs alone cover it twice over
  • Cluster path: dedicated gate automation site (distinct intent, different buyer), then the region's second city
Risk to watch: Dallas and Houston organic includes Lowe's and aggregator pages — retailers rank on authority, not content quality. We beat them the way the teardown shows works: per-foot cost math plus local permit detail they will never publish.

Attack 3 · Whole-House Water Filtration

Score 89 · Build third Steady year-round demand with the strongest recurring-revenue story of the five: filter and salt service keeps the renting operator loyal. The entire niche outside Phoenix runs "call for pricing" — publishing bundle tiers is both the ranking and the conversion mechanic.

33,100
Softener Installs / $18.81 CPC
Low
Ad Competition On That Term
$2k–$8k
Installed Ticket
Year-round
No Seasonality Cliff

Regions and order

  • First: Tucson and San Antonio together — documented hard water in Tucson, published utility water-quality reports in San Antonio (real source material, no fear-mongering)
  • Second: Las Vegas (extremely hard water) and Houston suburbs
  • Note: Phoenix is where the price-publishing winners live — enter there only with a differentiated angle, not a copy

Keyword family (monthly / cost per click)

  • Commercial: water softener installation 33,100 / $18.81 (low ad competition) · water softener near me 12,100 / $15.93 · whole house water filtration near me 880 / $16.80
  • Cost: water softener installation cost 12,100 / $12.80 · whole house water filter cost 4,400 · water softener cost 2,900
  • Research: whole house water filtration system 135,000 · best whole house water filtration 14,800 · water softener vs water filter 1,600

Site blueprint

  • Published bundle tiers with exactly what is included (bypass valve, labor, salt, filters, sanitizer) plus a component price grid — the proven Phoenix pattern
  • Softener versus filtration versus drinking water as three distinct decisions; "which system answers your actual complaint" decision guide
  • Local utility report breakdown, maintenance and replacement costs, questions to ask an installer, free water test offer
  • Warranty and risk-reversal block; license number in hero and footer once the client has one

Buyer and monetization

  • Buyer: small water treatment operator with install crews and recurring service plans — the recurring revenue is why they stay for years
  • $75–125 exclusive leads → $600–800 flat rent; one install covers the quarter
  • Cluster path: separate softener and drinking-water sites once the parent ranks (three distinct intents)
Risk to watch: claim discipline. Performance statements come from manufacturer specifications and National Sanitation Foundation certifications only, and hard water gets framed as a mineral and appliance issue — local utilities explicitly say it is not a health risk, and we never say otherwise.

Attack 4 · Garage Epoxy & Makeover

Score 84 · Build fourth The fastest to rank of the five and the cleanest proof that pricing is the ranking mechanic: a "$995 installed" title holds number one in Houston while Los Angeles's top three sites publish zero prices across 19 pages. Indoor work, so no seasonality at all.

8,100
Cost Searches / $10.64 CPC
$995–$5k
Ticket, Bundle To Makeover
0 of 19
LA Pages With Prices
Wide open
AI Answer Layer

Regions and order

  • First: Phoenix suburbs — pairs with the patio metro (local knowledge and our content machine compound), three-car garages everywhere
  • Second: Houston (the proven playbook market) and Dallas
  • Then: San Antonio, Las Vegas, Tampa, Atlanta

Keyword family (monthly / cost per click)

  • Commercial: garage floor epoxy near me · garage floor coating [city] · epoxy garage floor installers
  • Cost: garage floor epoxy cost 8,100 / $10.64 · $5–8 per square foot flake, $10–18 metallic (per-market anchors)
  • Research: epoxy versus polyaspartic, one-day versus two-day systems, prep and failure math

Site blueprint

  • Price in the title tag and homepage: "from $995 installed" style anchors with an overage policy spelled out
  • The honest both-system explainer nobody runs: 2-day epoxy plus polyaspartic versus 1-day polyaspartic, trade-offs table
  • Objection library: adhesion and psi specs, "80% of failures are prep," failure math (removal costs 3× doing it right)
  • Makeover bundle merchandising: cabinets, slatwall, overhead racks, lighting — lifts tickets toward $2,500–$5,000

Buyer and monetization

  • Buyer: small epoxy flooring operator (the review and price leaders are all independents) — also the easiest first sale of the five, since they are hungry and marketing-poor
  • $75–100 exclusive leads → $500–700 flat rent (honest tier: tickets are smaller here)
  • Cluster path: garage makeover / home gym sibling site later
Why it ranks fastest: the field is technically sloppy — dead analytics, wrong-state phone numbers in schema, duplicate brands splitting their own local footprint. A clean template with prices, FAQ schema, and an AI-discovery file enters at the top of this field. This is the site that proves the whole model on a short clock.

Attack 5 · Windows & Doors

Score 83 · Build fifth The slowest to rank and the biggest rent upside. Franchises and retailers hold the top of organic, but the teardown shows independents ranking directly beneath them with the right content — and the cost and energy-credit questions sit undefended in every market. $5,500–$25,000 jobs mean $1,000–1,500 rent is an easy conversation once leads flow.

22,200
Cost Searches / $22.07 CPC
$5.5k–$25k
Project Value
Year-round
Demand Flat All 12 Months
$1,000–1,500
Rent Tier Target

Regions and order

  • First: San Antonio and Austin suburbs — big replacement market, weaker franchise saturation than the coasts
  • Second: Phoenix and Tucson corridor (heat makes windows an energy purchase)
  • Then: Houston, Sacramento suburbs, Las Vegas, Tampa

Keyword family (monthly / cost per click)

  • Commercial: window replacement near me · window installation [city] · window and door contractors
  • Cost: window replacement cost 22,200 / $22.07 · cost per window installed ($550–$850 single-hung anchors; "10 windows, $5,500" style project anchors) · full-house replacement ($6,999 anchors float unowned)
  • Research: full-frame versus retrofit, energy tax credit content (the current-law gap the whole field missed), warranty mechanics

Site blueprint

  • Product-by-city matrix: each window type with per-city cost and lead times — the exact pattern that puts independents on page one
  • Cost tables published openly (the field's universal silence is the opening) plus "10 windows, $X" project anchors
  • Energy education: solar heat gain and U-factor explainers, full-frame versus retrofit, current tax-credit content — the biggest content gap in the study
  • Warranty mechanics page and named financing — the quiet deal-closers

Buyer and monetization

  • Buyer: independent window and door company (not a franchise — franchise marketing directors cannot say yes on impulse)
  • $100–150 exclusive leads → $1,000–1,500 flat rent — the one niche where the top rent tier is justified from month one of leads
  • Cluster path: doors as same-buyer pages; shutters and siding later
Risk to watch: national brands (Renewal by Andersen, Window World) hold organic authority and 5,000-review map packs. We do not fight them head-on for "window replacement near me" in their strongest metros — we win the cost and education layer they refuse to publish, and take the researcher who is three weeks from buying.

Build Order

Month 1 · Patio + Fence
→
Month 2–3 · Filtration
→
Month 3–4 · Garage Epoxy
→
Month 4–6 · Windows
→
Wave 2&ndot;3 · Expand

Month 1 The spring-peak pair

  • Patio (Phoenix East Valley) and Fence (Dallas suburbs) go up together — both peak February through April, so both must be indexed before the peak
  • Each gets: cost guide first, money pages, quote intake, call tracking, AI-discovery file
  • Buyer outreach runs parallel from day one — a live site is the pitch

Month 2–3 Filtration, then the fast ranker

  • Filtration (Tucson and San Antonio) — no seasonality, no rush, steady ramp
  • Garage Epoxy (Phoenix suburbs) — deliberately short-cycled after the patio template proves out; it is the model's proof-of-concept on a fast clock

Month 4–6 The rent-topper

  • Windows and Doors (San Antonio and Austin) — slowest burn, biggest rent tier
  • By now the first two sites are in flat-rent mode and the template library has four proven archetypes

Gates What moves a site up the queue

  • A site climbs the order the moment its Search Console data shows cost-page impressions compounding
  • A site slips the moment its buyer search comes back empty — no buyer, no build
  • Never more than two to four sites in flight — spread thin means nothing ranks
  • Wave two (concrete, attic insulation, irrigation, termite, tree, pool resurfacing) only after three of the top five are producing leads

Regions Master Map

RegionWhy it is on the mapNiches it hosts
Phoenix & East ValleyPage one for exteriors is forums and retailers; map packs hold two businesses; year-round install seasonPatio (first), Garage Epoxy (first), Fence (second), Filtration (later)
Dallas–Fort WorthMassive 1990s housing stock aging into replacement work; packs run on single-digit-to-moderate reviewsFence (first), Garage Epoxy (second), Windows (later)
San Antonio & AustinPublished utility water reports; growing suburbs; weaker franchise saturationFiltration (first), Windows (first), Patio (later)
TucsonDocumented hard water with a public utility report to citeFiltration (first)
HoustonVolume market with proven playbook patterns; more lead-gen saturationEpoxy (second), Fence (later), Filtration (later)
Las Vegas & TampaHard water, pools, year-round exteriors, growing populationsWave-two expansion for all five
Atlanta, Nashville, CharlotteGrowth markets with aging suburban housing stock, snow-freeWave-two expansion (fence, epoxy, windows)
California suburbs (Inland Empire, Sacramento, North San Diego)Soft markets — but advertising home improvement work carries state license-board compliance surfaceWave three only, licensed partner attached first
The snow rule: every region above stays workable through the winter — exteriors run year-round in the Sun Belt, and Q4 builds are ranked and waiting for the spring peaks (patio and fence both nearly triple from December to March). Northeast and Midwest stay off the map.

Money Model

The target product: boring, dependable, low-maintenance income. One region, one niche, one responsive buyer, one flat fee. Five sites at a $700 average is $3,500 per month once the top five are all in rent mode — and every one of them keeps appreciating as rankings compound.
Monthly rentQualified inquiries needed per monthWhy
$500–7001–3 (patio, fence, filtration, epoxy)Jobs contribute $1,000–$4,000+ each after direct costs. One patio or fence job covers the quarter
$800–1,0002–3Proven lead stream, warm relationship, fence and filtration territory
$1,000–1,5002–4 (windows)$5,500–$25,000 windows jobs justify the top tier — earned after lead flow is proven, never opened with

The pilot that sets the price

  • 30 days of exclusive qualified inquiries at $75–125 each
  • Agreed in writing: what qualified means, which services and locations count, duplicate handling, response-time commitment
  • Track every inquiry to estimate and booked job — the evidence sets the rent number

Later revenue layers (not in plan numbers)

  • Advertorial campaigns as a partner-funded bridge — story-style ads into the same quote path, never lead-form ads. Held under the per-lead fee so it is margin-positive from day one
  • Setup and conversion work on the contractor's own website and real business profile
  • Affiliate income from kit and product content — bonus only, disclosed

Guardrails

Never

  • No fake business profiles, borrowed identities, invented addresses, or fabricated reviews. Google lists lead-generation companies as ineligible for Business Profiles — the only legitimate path is managing a real business's profile as an authorized representative with the owner's consent
  • No credential claims until a real client supplies them: no "licensed," "certified," "insured," "our crews," or "our warranty" language in any template
  • No engineering instructions or technical assurances beyond what published sources support
  • No fear-based health claims — grounded practical framing only (water quality, hazards)
  • No promising rankings — ever, to ourselves or a buyer

Always

  • Resource positioning: regional planning and installer-matching. A named partner's verified credentials and real project photos get published the day they exist
  • One intent per site. Cluster siblings earn their place only on genuinely different services — keyword-swapped duplicates are doorway pages. Wave siblings only after the parent produces
  • Distinct tracking numbers, templates, and analytics per site; natural cross-linking with brand anchors
  • Performance claims sourced to manufacturer specifications, National Sanitation Foundation certifications, or published utility reports
  • The gate before spend is a paying buyer and a converting site — the gate before building is the demand check

Sources

Competitive findings come from live Google results captured through DataForSEO on October 5–8, 2026 (mobile; Los Angeles, Phoenix, Dallas, Houston) and are point-in-time. Demand figures are Google Ads keyword data, United States, English, captured October 2026. Scores are this plan's own weighted model — planning judgments, not forecasts.

Rank & Rent Attack Plan · Previous version: rank-rent-plan.pages.dev (first-wave two-niche plan) · Companion skills: rank-and-rent-leadgen, rank-and-rent-attack