Start from a list you've already narrowed by combining property filters. The order here suits an investor who buys houses to renovate and resell, and whose scarce resource is calling time. The checks that can remove a record run before anything is bought, so a record that fails early never costs a phone number.
The buy box leads because the answer is already on the list grid. Property type, city or ZIP code and Estimated Value are all there, so a duplex on a single-family buyer's list comes off the campaign whatever else the record shows.
Ownership comes second, and it can take real work on a record with a recent deed. The Transactions tab in PropertyRadar's property profile has a Current Owner view, and the county's current ownership record is where to check a doubt. If the property has changed hands, replace the owner and start that record over, or remove it. It runs early anyway, because the later checks look at one owner's loans, events and phone numbers.
The economics come third, and they need two estimates from you: an after-repair value and a repair cost. BiggerPockets states the 70% rule as paying no more than 70 percent of the after-repair value, minus repairs. Its example is a $150,000 house needing $20,000 of work. Seventy percent of $150,000 is $105,000, and subtracting the repairs leaves a maximum of $85,000. The same article calls the rule a guideline and says the percentage runs as high as 80 or 85 in California, so set your own.
Compare that maximum with the loans on the property. PropertyRadar's Estimated Value minus its Estimated Equity gives a modeled figure for open loans. It isn't a verified payoff, and other liens, back taxes and closing costs all move the real number. So this check only routes records. A house with $40,000 in modeled loans against an $85,000 maximum goes forward. One with $130,000 in modeled loans gets its payoff and liens looked into before anyone spends calling time on it.
A record that clears the economics is worth looking up for a dated public event. The Foreclosures section of the Transactions tab shows recorded foreclosure notices. Tax delinquency shows in the tax delinquency fields and on the county's own list. No record fails this check, because its job is to decide whether the owner gets a call or a letter first.
Contact comes last because it's where the spending starts. Mail Vacant flags a mailing address the Postal Service has identified as vacant, and a clear flag doesn't confirm that mail will be delivered. For phones you already hold, PropertyRadar's owner profile marks an Active number with a green checkmark and uses a yellow triangle for Opted Out, Wrong Person, Disconnected or Do Not Call. The Do Not Call status appears only if your account has accessed DNC data. A green icon alone isn't a registry result, so every number you plan to dial still goes through your do-not-call and suppression screen.
A number that clears the screen points to a person, and it doesn't confirm that the person holds title or can sign. Use the first call to confirm you've reached the owner of record, along with the other checks before contacting an owner. When the owner is an LLC or a trust, find the decision-maker first. An owner whose only number is already marked Wrong Person gets mail now and moves to the steps for an owner with no valid phone.