Ideally I would install individual Ring Doorbells for each unit, but can these be connected to the same main door lock?

Installing drywall?

Install some true black-out curtains, so they can have a dark place to sleep, regardless of what shift they work. 

We install new cabinets, granite, stainless appliances.

Something that really saved me was installing leaf guards on my gutters.

***The installer claims that the floor was uneven.

I would probably take a different course of action, inquiring with counsel on vacating the original agreement to maintain the installment contract.  

Probably one of the only military installations that is currently expanding.

Again, have it all there so the plumber can install in one shot.Paint the walls a fresh, neutral coat.

We've brought in two dehumidifiers which are helping, but I'm not sure what the root problem is or even who to ask for help.One contractor said moisture is coming through a hole in the exterior stucco, but another said no way because the vapor barrier would block it. 1st one recommended installing insulation, but I've also read this can increase condensation problems.