We decided to ask her about moving into one of our renovated rentals on a month to month basis until she could find a permanent solution.

Must be good being a GC.I can't talk about other states, but think through the policy behind this: The Owner is getting the benefit of increased value through (permanent) improvements to the property. 

If you are paying all cash, then consider doing the LLCs with or after the permanent financing. 

My one question is, do I remove the shims on the base cabinets after they are secured to the wall, or should they remain a permanent fixture?

.,  our raditors were only removed long enough to refinish wood floors in LR and the one in DR was already removed and pipes permanantly capped when I bought one unit.

As an IICRC Certified MRS (Mold Removal Specialist), I can tell you quantities of mold like that can cause permanent damage to your body.

@Marek MlynarskiEverything went smoothly with my purchase of the property, unfortunately because I don’t have work history, a permanent address, and enough money in the bank, and so many other things especially now with what’s going on in the world, it almost impossible to find lending from a bank.

The plan is to stay in the house for the requisite time then move to our more permanent house.

This is a required step before layoffs can become permanent. 

This is job-related, so I don't anticipate it being permanent.