The crawl also appears to be quite moist, since there weren't any vapor barriers set up to prevent moisture from building up.I am worried that over time the soil could shift, causing the supports to give way.

As such, consider this an urgent matter and consider getting an attorney if tenant is difficult or you forsee him/her being difficult.I am nto ana ttorney and this is not legal advice.

They are aware of the routine  and repeated use and turnover of these unit/dwellings and are reluctant to allow most "damages" alleged by landlords.IMPORTANT Even if she were to prevail on her BS carpet claim for $230, you'll hang her with your attorney's fees and costs since you won the majority of the contested amount of your security deposit.

Should I ask her uncle if he is okay with her being removed from the lease one month early, or should I just inform her that she is required to stay on the lease for the remaining month until the lease ends?

It's cheap, will take up very minor irregularities, is a good vapor barrier, and comes with preprinted straight lines that can help you keep your flooring oriented.

If you file eviction action on her all that's going to happen is she'll have much harder time to find housing,, (any kids),,, your son's then going to get stuck with larger housing bill if he's got kids with her..Be civil, tell her, he's gone, so your going to have to go.. 1 months rent is a better loss than more than that.

Here is what I am thinking of doing:remove drywall from walls to pinpoint any leaking causing high wall moisture, fix any leaksremove about a foot worth of dirt from the floor to have over 7' of ceiling heightadd cement to dirt flooring so there is flat spaceAdd a vapor barrierAdd flooringClear potential moldAdd new drywallReplace flooring and bathroom showerBecause I've never managed a project to this extent, I wanted to see if anyone had advice on how to prepare for contractors.

The tenant has closed off the upstairs with plastic sheeting and moved her bed into the living room because she couldn't keep the upstairs heated.  

So there aren't any stipulations on her being the realtor on deals I would make?

The office confirmed that she’s going, I have 2 security reports and one police report to back up her being a nuisance.