Doorcount

Free Deal Check calculators

Plain-English answers on a property in a couple of minutes. Cautious defaults you can see and edit, every term explained, and stress tests that show what breaks a deal. Nothing to sign up for.

2–20 units

Multifamily Deal Check

Duplexes to 20-unit buildings. NOI, cap rate, DSCR, cash flow, max offer and three stress tests.

Open the calculator →Printable worksheet (PDF)
1 home

Single-Family Deal Check

Three modes: a home to live in (affordability), a rental (cash flow) or a fix & flip (profit and the 70% rule).

Open the calculator →Printable worksheet (PDF)
20+ units

Large Apartment Deal Check

Unit mix, lender-style loan sizing (LTV, DSCR, debt yield), value-add and a 5-year IRR.

Open the calculator →Printable worksheet (PDF)
Get a second set of eyes: $149 Quick Check →An easy deal review, done by our team. We check rents, taxes, insurance and financing.Doorcount Auction Radar →Free weekly list of properties going to auction, pre-screened against your buy box.

IMPORTANT DISCLAIMER: Doorcount underwriting is intentionally conservative and is provided for informational purposes only. It is not investment, legal, tax, or financial advice, and it is not a recommendation to buy, sell, bid on, or finance any property. Before making any decision, you must perform your own underwriting using multiple independent sources (including your own lender, inspector, appraiser, title company, attorney, and local market experts). Doorcount accepts no responsibility or liability for any action taken or decision made based on its underwriting or content. Doorcount is not responsible for the accuracy of this document as applied to your individual market. All figures are estimates.