Rental Property Due Diligence Checklist: 15 Points Before You Sign

The analysis spreadsheet tells you whether the numbers work. Due diligence tells you whether the numbers are true. Sellers' expense figures are optimistic by profession; your job in the window between offer and closing is to verify every input the deal depends on — and to find the expenses nobody mentioned.

Work all 15 points before you sign. Print this page and check them off.

Print this page — the print stylesheet strips the navigation and leaves the checklist.

The 15 points

• 1. Property taxes — verify, don't trust the listing.
  Why: taxes are usually the largest single expense, and a sale can trigger reassessment at the new price. How: pull the actual tax bill from the county assessor/recorder, and ask what the assessed value becomes at your purchase price.
• 2. Insurance — get a real quote.
  Why: premiums have moved sharply in many markets; the seller's old policy price is not your price. How: request a binding quote from an insurer for this address, this construction, this use (landlord policy, not homeowner's).
• 3. HOA assessments and rules.
  Why: monthly dues eat cash flow, special assessments eat reserves, and some HOAs restrict or ban rentals outright. How: obtain the HOA budget, dues schedule, rental policy and any pending special assessments — in writing.
• 4. Flood zone status.
  Why: a flood-zone property can require flood insurance that wrecks the expense column, and it affects resale. How: check the FEMA flood map for the parcel and ask the insurer from point 2 whether a lender will require a flood policy.
• 5. Title search.
  Why: liens, easements, judgments and boundary surprises transfer headaches to the new owner. How: order a title search through the title company or attorney and read the commitment — every exception — before closing.
• 6. Local rental rules and licensing.
  Why: some cities require rental licenses, inspections or registrations; some restrict short-term rentals or impose rent rules. How: check the municipal code and the licensing office for this address and property type.
• 7. Lease and tenant status.
  Why: you inherit existing leases — their rent, term and deposits bind you. A “market rent” in the listing may be a $200-lower actual lease. How: get copies of all leases, the rent roll, deposit records, and an estoppel certificate from each tenant where feasible.
• 8. Permits history.
  Why: unpermitted additions may not count as legal living space and can surface at appraisal or resale. How: pull the permit history from the city/county and compare it against what is actually built.
• 9. Sewer or septic.
  Why: a failing septic system or a collapsed sewer lateral is a five-figure repair that no spreadsheet line predicted. How: confirm sewer vs. septic; for septic, get inspection/pumping records; consider a sewer scope on older homes.
• 10. Utilities — who pays what, and how much.
  Why: landlord-paid water, heat or electric can quietly erase the cash flow — and some cities lien unpaid tenant water bills to the property. How: request 12 months of utility bills and confirm, in writing, which utilities the owner pays and whether unpaid tenant bills attach to the property.
• 11. Zoning and legal use.
  Why: a duplex that is legally a single-family (or a unit count the zoning doesn't allow) changes the income — and the financing. How: verify the zoning designation and the legal unit count with the planning department.
• 12. Rent verification.
  Why: pro-forma rent is a marketing number; your underwriting needs the market's number. How: compare at least three genuinely similar rented properties (same area, size, condition) — actual leases where possible, not asking rents.
• 13. Expense verification.
  Why: sellers understate repairs, management and vacancy; T-12 statements often omit owner-paid items entirely. How: request the trailing-12-month expense records and Schedule E if available; rebuild any missing line from your own quotes and the other points on this list.
• 14. Professional inspection.
  Why: roof age, HVAC condition, foundation and electrical determine your CapEx reserve for the next five years. How: hire a licensed inspector, attend the inspection, and convert the report into dated, priced CapEx items — not a vague “deferred maintenance” note.
• 15. Insurance claims and property history.
  Why: prior water, fire or repeated claims affect insurability and hint at recurring problems. How: ask for the seller's disclosure forms, check claim history where available, and cross-check anything disclosed against the inspection (point 14).

How the checklist feeds the analysis

Every verified number replaces an assumption in your underwriting: the real tax bill, the quoted premium, the actual lease rent, the inspector's CapEx list. Re-run the deal with verified figures only. A property that still works after all 15 points is a deal. A property that only worked on the seller's numbers never was.

For scale, here is what verification does to a real screening example — price $250,000, rent $1,800/mo, 20% down at 7%/30 years, with taxes, insurance and a separate 5% CapEx reserve honestly included:

That deal fails — and finding that out on paper, before signing, is the entire point of this list. The full chain is in the cap rate guide.

Get the checklist as a working sheet

This page mirrors the Checklist sheet inside our Real Estate Deal Analyzer. The free Lite version gives you the analyzer sheet itself (cap rate, NOI, cash flow, cash-on-cash, DSCR) to run the verified numbers through. The Full version adds this 15-point checklist as a trackable sheet, plus the sensitivity grid, 5-year projection with IRR, BRRRR calculator and 3-deal comparison.

This checklist is an educational tool only and does not constitute financial, investment, tax, or legal advice. Requirements vary by jurisdiction; verify all items against local rules and with licensed professionals before purchasing any property.