Claude Code skills · updated 2026-10-03

Rental Deal Memo Skill

A one-page rental deal memo: cash flow, cap rate, DSCR and what to verify

The worked duplex at 240,000 shows a seller-flyer cap rate of 8.65% that falls to 5.29% once vacancy, repairs, capex and management count: cash flow -138.98 a month, DSCR 0.88.

Get it on Whop - $19 onceGet it on Gumroad

Who it's for

Built for small landlords and wholesalers who get a flyer and need to know if the deal works.

What breaks, and when

A cap rate quoted on taxes and insurance only hides the costs that turn a deal cash-negative after closing.

The worked example it ships

DEAL MEMO - Side-by-side duplex, Toledo OH (example) - 2 units
All amounts in US dollars. Inputs from the brief; every line below is arithmetic on them.

1. THE DEAL
Purchase price: 240,000 · Loan: 180,000 (25% down = 60,000) at 7.00%, 30 years
Cash invested: 72,200 = down 60,000 + closing 7,200 + make-ready 5,000

2. RENT
Gross scheduled rent: 2,200 / month x 12 = 26,400 / year
Vacancy allowance (6%): -1,584.00
Effective gross income: 24,816.00 / year

3. OPERATING COSTS (per year, no mortgage)
Property tax (seller's bill): 3,960.00
Insurance (agent quote): 1,680.00
Water, sewer, trash: 1,320.00
Repairs (6% of rent): 1,584.00
Capital reserve (6% of rent): 1,584.00
Management (8% of collected rent): 1,985.28
Total operating costs: 12,113.28 (45.9% of rent)

4. RESULTS
NOI: 12,702.72 / year (24,816.00 - 12,113.28)
Debt service: 1,197.54 / month = 14,370.53 / year

What you get

• NOI, cash flow, yield, cap rate, cash-on-cash, DSCR, break-even occupancy
• The seller's cap rate recomputed from the same rent, gap itemised
• Price where cash flow hits zero, and where DSCR reaches 1.25
• A what-to-verify list plus a brief template and a full worked memo

Install

Unzip into ~/.claude/skills/ (Claude Code) or upload it as a custom skill in the Claude app, then ask: "Run the numbers on this duplex before I make an offer". Nothing to run.

unzip rental-deal-memo.zip -d ~/.claude/skills/

Ask Claude

“Run the numbers on this duplex before I make an offer”

What it does not do

It does not find deals, pull comps or tax records, or tell you to buy; it is not investment, tax or lending advice.

FAQ

What is a Claude skill?

A folder with a SKILL.md, a method, fill-in templates and a worked example. Claude loads it when your request matches and follows that method instead of improvising.

How is this different from asking Claude without the skill?

The skill carries a fixed method, fill-in templates and a full worked example, so Claude follows the same structure every time instead of improvising a new one.

What does it not do?

It does not find deals, pull comps or tax records, or tell you to buy; it is not investment, tax or lending advice.

How do I install it?

Unzip into ~/.claude/skills/ (Claude Code) or upload it as a custom skill in the Claude app, then ask: "Run the numbers on this duplex before I make an offer". Nothing to run.

What do I get when I buy?

The zip. On Whop it is in your library as a download lesson with the zip attached; on Gumroad it is the product file.