Free Claude playbook for buy-and-hold and rental investors

The Complete Claude Playbook: Buy-and-Hold Investing

Hand Claude a messy seller package, a rent roll in one format, a T-12 in another, a scanned offering memo, a stack of lease PDFs, and get back a real NOI: normalized to your costs, stress-tested on cash-on-cash and DSCR, scored against your buy box, with the LOI drafted.

You are not buying a building, you are buying its income statement, and the version the broker hands you is marketing. This pack is the method, the prompts, and the templates to build the underwriting engine in Claude: the four-stage pipeline, the signal library, and the buy-box scorecard. It replaces the Saturday model-rebuild, the translation tax you pay on all ten deals to make one offer.

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Who this is for

If your return is won or lost on one number, real NOI, the constraint is not finding deals. It is the hours every package burns before you know whether it pencils. This gives those hours back.

Buy-and-hold operators

You run 5 to 50 doors of single-family rentals and small multifamily, and you underwrite for cash flow, not appreciation hope. The grind is the model rebuild, not the judgment.

House-hackers scaling up

Moving from your first rental into a small apartment building. Same messy packages, higher stakes, and no analyst to retype the rent roll for you.

Principals running a tight fund

Five target submarkets, one of you. The engine underwrites every package that lands instead of the nine that die in the model eating your Saturday.

The four-stage engine

Four stages, each a production prompt with input slots and a fixed output contract, so they chain without losing rows. When a broker sends a format you have never seen, you rerun Intake, not the whole pipeline. Plus the signal library that reads the real story and the ceiling that keeps the estimate honest.

Intake the package

The deal lands like it always does: a rent roll in one format, a T-12 in another, a scanned offering memo, a dozen lease PDFs. Claude parses it instead of you retyping it. No unit silently dropped, no line lost.

Normalize to a real NOI

Turn the seller's numbers into yours. Add management even when it's self-managed, add a reserve and capex line, reset taxes to the post-sale assessed value, true up insurance, and split economic vacancy from physical. Everything downstream rides on this stage.

Underwrite at a stressed rate

At your assumptions, compute true NOI, cap rate, cash-on-cash, and DSCR at today's rate and at a stressed one. Rate up, vacancy up, rents flat, so you see the floor instead of the broker's ceiling.

Decide and draft the LOI

Score the deal against your buy box, flag below-market rents as upside, surface the deal-killers, and if it clears your floor, draft the LOI. Pursue, Watch, or Pass, always with the reason it ranked where it did.

The signal library

The patterns that say the flyer is hiding something: loss-to-lease by unit, gross potential rent versus actually collected, an expense ratio below market, taxes still at the seller's basis, a rate reset or balloon inside your hold. Additive, explainable, tuned against your closed deals.

The honest ceiling

AI ranks and drafts, it does not decide. A normalized NOI is a defensible estimate, not an audited figure. Physical condition, final comps, and the local-market read stay human. Every adjustment traces to a source line, or it isn't made.

How to run it

Start in conversation mode today: a Claude project, the four prompts, and your next deal package. Conversation mode underwrites one deal in an afternoon with no code. Agent mode is the production configuration that underwrites every package in your inbox overnight, and the prompt suite doubles as its specification if you have an engineer.

Claude

Project, conversation mode

No code

Claude Code

Agent mode

Dev env

Your model

The engine fills it

Any

Your first run

Take the next package a broker sends you, fill in your assumptions, and open the normalize stage:

You are normalizing a seller's package for a buy-and-hold underwrite.

RENT ROLL: [paste or attach the rent roll]
T-12: [paste or attach the trailing twelve]
MY ASSUMPTIONS: [management %, reserve/capex per unit,
insurance quote, post-sale tax basis, vacancy]

Rebuild the T-12 to a real expense load at MY assumptions.
For each line, show the broker's figure, your adjustment, and
the reason. Flag anything you had to estimate. Do not invent a
number the documents never contained.

The guide walks all four stages, the normalization traps that quietly bleed points off your return, the buy-box scorecard, and the human checkpoints that sit between a ranked deal and a signed LOI.

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