Your first mistake was having only a 'brief conversation' with the owner after they mentioned doing remodeling. Remodeling to the owner may mean painting only. But your imagination is thinking what. Might be nothing, or something. Unless you desperately need a trip fee i would have more knowledge of what remodeling, maybe yes, or no, affecting your appraisal.
I have direct lenders who appreciate knowing ahead of time a possible major problem, or maybe it's just my problem perception of a no problem in reality.
Normal conv/FHA financing is either 'as is or subject to'.