Stop guessing from list price
See how assumptions affect monthly cash flow and investor metrics before you tour or offer.
Private rental, flip, and BRRRR analyzer
Run the numbers before you chase the deal.
Private Investment Deal Underwriter helps you organize price, rent, financing, expenses, repairs, and exit strategy assumptions in one local browser tool.
Prefer Gumroad? Buy securely on Gumroad.One-time digital download. No login, no subscription, no connected property API. Not financial, tax, lending, or investment advice.
RentalCash flow, cap rate, DSCR
FlipProfit and resale assumptions
BRRRRRefi and hold scenario checks
PrivateYour entries stay local
The problem
Most deal math is scattered across too many tabs.
Listings show one number. Rent estimates show another. Loans, taxes, insurance, repairs, vacancy, and management change the answer. This tool gives you a structured first-pass screen before you spend more time on a property.
Compare more than one exit
Review rental, flip, and BRRRR logic from the same property inputs.
Keep it local and simple
The tool runs in your browser. No account, no subscription, and no automatic property lookup.
Product preview
See the deal screen in motion.
The existing demo shows the analysis dashboard, saved deals, and backup workflow. Use it to understand the product before buying.
- Enter purchase, rent, loan, expense, and repair assumptions
- Review deal score and key metrics
- Save up to 12 deals in your browser
- Export and restore your local data
How it works
Four steps, one private worksheet.
Add the property
Enter the numbers you already have: price, rent, taxes, insurance, repairs, and loan assumptions.
Choose the strategy
Review rental, flip, BRRRR, or compare mode without rebuilding a spreadsheet.
Read the metrics
Check cash flow, cap rate, DSCR, and offer guidance using your assumptions.
Save or pass
Save the deal locally for later comparison or move on before wasting more time.
Included
What you get
- Private Investment Deal Underwriter HTML tool
- Rental, flip, BRRRR, and compare workflows
- Sample deal data to test the tool quickly
- Saved deals in browser storage
- JSON backup and restore
- Video tutorials on the product page
Free resource
Get the Rental Deal First-Pass Checklist.
A one-page checklist for the numbers to collect before you trust a deal. It helps you prepare your assumptions, but it does not replace the paid tool.
Questions
FAQ
Does this pull listings or rents automatically?
No. This Etsy product is a private manual analysis tool. You enter your own assumptions from listings, rent comps, lender estimates, or your own research.
Is this financial advice?
No. It is an educational organization and analysis tool. Verify assumptions with qualified professionals before making investment decisions.
Where is my data stored?
The tool runs locally in your browser. Your entered deal data stays on your device unless you export a backup file.
Can I use a spreadsheet instead?
Yes. This tool is for buyers who want a structured rental, flip, and BRRRR workflow without building and maintaining their own spreadsheet.
Ready to check your next deal?
Use the tool as a first-pass screen, then verify rent, taxes, insurance, financing, condition, and local rules before making any offer.
Get It on Etsy Prefer Gumroad? Buy securely on Gumroad.One-time digital download, available on Etsy and Gumroad. See the store listing for current price, delivery details, and policies.