Considering so many homes in Baltimore are going to be old, I think a good flip balances the old and the new. As someone said, if it looks like a completely new suburban house inside, beware. But if they maybe refinished the original floors instead of putting down laminate or vinyl, that's a good sign. Maybe they updated the kitchen, but kept the bathroom looking kinda vintage. I look for uncarpeted basements: like I will not buy a house with carpet in the basement because it seems a bit irrational? But I also look for things like this in homes that are occupied.

When I was looking at homes that were flipped, my priorities were walking all of the floors from corner to corner, going in the basement to see what it looked and smelled like, whether the house made sense. The bad flips often had flooring issues, or basements that are overdone with carpet at one extreme or either zero attention at the other. Houses with very weird modern lighting or coffered ceilings were also red flags. Like they're trying to keep your eyes up and distracted for a reason imo.