A beam in the crawl space was structurally compromised.

You will need to compromise if they offer anything at all but share with them that how they handle this situation will affect what you tell others about their business. 

I compromised and bought a smaller enclosed trailer for behind the Jeep.

Then again with uneven joint expansion/contraction due to hot water it may compromise the very thin silicon bond you talk off applying.  

The windows are original (we think) and most of the seals have been compromised.

Don't compromise on your standards.

No, they'd find a way to shortchange me and compromise the final result, get paid and disappear.In Europe, I once had to do a room where a tenant had the walls painted with pink powder paint, kalsomine, then spent twenty years working and chainsmoking in that room eight to ten hours a day.

If you are going to look for a lender locally you will find some options for a home with Airbnb income but based on what I know is available you will have to make some compromises to get it done because you will have to go with a lender that does Portfolio loans. 

If the deal falls apart, you can rest easy that you didn't compromise your financial situation by giving in to others that have ulterior motives.

Now say there is a broken truss in the attic and the foundation wall has a structural compromise that a layman wouldn't see.