The Due Diligence Checklist: 10 Steps to Vet Any Tax Lien

Updated Oct 8, 2026

In tax lien investing, much of your result is decided at the moment you buy. Careful research is the main way to reduce risk, and it is the part you fully control.

Use this ten-step checklist for every lien you consider.

Step 1: Location and access

Check: satellite and street imagery for the parcel. Why: make sure the land is not landlocked, underwater, an unbuildable strip, or otherwise unusable, and that it has road access.

Step 2: Structure and condition

Check: photos and imagery for fire damage, a collapsed roof, major structural problems or long neglect. Why: a ruined building can be a liability (demolition, code fines) rather than value. A buildable vacant lot can be a cleaner risk.

Step 3: Value-to-lien ratio

Check: the lien amount against the assessed or estimated market value. Why: this is your cushion. A lien that is a few percent of the value is well secured; a lien near half the value or more is a warning sign.

Step 4: Tax payment history

Check: past tax years for the parcel. Why: a one-time miss by an owner who usually pays suggests likely redemption. Years of chronic delinquency can signal a distressed property or an absent owner.

Step 5: Other liens and encumbrances

Check: the county recorder and other official records for code-enforcement, utility, special-assessment and federal tax liens, and for any bankruptcy filing. Why: a property tax lien usually has priority over mortgages, but some government liens can share or affect that priority, federal tax liens have special rules, and a bankruptcy can pause or change what you collect.

Step 6: Market health

Check: population trends, home values and the local job market. Why: growing areas tend to see more redemptions, and any property you might acquire is easier to sell. See Finding sweet spots.

Step 7: Zoning and land use

Check: zoning, flood zone and any conservation or wetland designation. Why: make sure the parcel can legally be used for something. A "lot" in a conservation easement or floodway may be nearly worthless.

Step 8: Redemption likelihood score

Check: the redemption score on the LienDeed parcel page. Why: it summarizes signals from county data (such as tax history and parcel characteristics) into a single estimate. Use it to match the lien to your goal: higher for steady income, lower if you are prepared for the deed path. It is an estimate, not a prediction you can rely on alone.

Step 9: Overall risk score

Check: the risk score and its breakdown. Why: it flags factors you might miss when reviewing many parcels quickly. Treat each flag as something to verify, not as a verdict.

Step 10: Go or no-go

Decide: add the lien to your watchlist or bid list, or drop it. Why: a consistent process beats gut feeling. If a parcel raises too many questions, move on; there are always other liens.

Research tools, scores and watchlists are available on LienDeed county pages and in LienDeed Pro.

This article is general information, not financial or legal advice. Tax-sale rules change; always confirm with the county.