Foundation, moisture?

Dirt/leaves got between the decking and the extension roof, holding moisture.

The clay expands and contacts with moisture changes and settles a little each time, pushing in the wall.

I would start with the formation of the partnership LLC/LLP after a thorough discussion that you will both be on the same page for the strategy and tactics of investing, and that the partnership is a relationship of mutual trust and there should be gentle and considerate exit strategies for both of you, in the partnership contract.Then with the partnership formed get the house hack with the minimum cash outlay required to get into the deal, which is to say using the maximum amount of mortgage funds. 

After all that it finally mitigated itself.A good temporary idea to help bring home how home much moisture they're creating is to buy one of those moisture bags and hang it in their bedrooms.

If so, I'd let her stay another six years and bump it up gently.

After visiting the home & gently pointing out a few structural issues, I offered her $5,000.

My impression is that the moisture was visible inside the closet.