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.

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.

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

See it first
The full worked example output is free on getreadystack.com/skills/rental-deal-memo/ — no sign-up, so you see exactly what you get before you pay.

Install in 30 seconds
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 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
Q: How is this different from asking Claude without the skill?
A: 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.
Q: How do I get the files?
A: After paying, open it in your Whop library: in “Download — rental-deal-memo” the lesson “rental-deal-memo.zip” has the zip attached.