At what stage do you decide a flip is NOT worth pursuing?

Question

I’m trying to understand how experienced flippers decide to walk away from a deal early.

From what I’ve seen, most mistakes happen not in execution, but in:

underestimating rehab scope

overestimating ARV

or pushing deals that should’ve been filtered out early

I’m exploring ways to improve early-stage deal clarity using structured breakdowns (including some AI-assisted evaluation tools I’ve been testing), but I’m still learning how professionals actually make these calls quickly.

What’s your personal “red flag” that immediately kills a flip deal for you?

Peter Mckernan · Answer

The things that are easy to spot are bad comps given to you by the wholesaler, properties that are really in disrepair and would take way more then what the person selling is stating or what you are seeing.

The rehab costs and purchase price are the easiest things to spot that could make or break the deal. Those are the early signs of getting caught.

The ones that are late after closing are the ones like opening a wall and seeing black mold and needing to mitigate that type of thing, or others that are hidden structural issues.

Justice Okpara · Answer

That's a great point. It seems like the biggest early mistakes are often tied to things that look reasonable on paper but fall apart once the rehab scope or comps are examined more closely.

The wholesaler comp issue is something I've been noticing more as I learn. If the ARV is built on weak comps, everything downstream starts looking better than it really is.

The hidden issues after closing are what seem hardest to account for upfront. When you're evaluating a property before making an offer, are there any warning signs that make you suspect there could be larger structural or environmental problems hiding behind the walls?