If I could find one more investor then this becomes easier so I wont have to swing the hammer as much and can focus more on the project management aspect.

VA/FHA sees my income as minimum wage because of this and wont consider the tipped portion until I have been on the job for 2 years.

If so, would a 50/50 split be reasonable since he wont be bringing any financing? 

She says shes the mother of the tenant who left and wont be leaving because she has squatter rights.

Check your lease, I started with a generic one I drafted online and have added to it over time but mine states "if the premises become totally or partially destroyed during the term of this agreement so that the residents use is seriously impaired owner or resident may terminate immediately upon a 3 day notice. 

I'm closing on what will be my primary residence but I'm out of the county and wont be back for months. 

You have to be an expert at lead, gen, consitent follow up, negotiating with an elderly person sitting on ther couch offering 50% of what it would sell for fixed up hopefully less, estimating repair costs, THEN almost as hard finding a cash buyer who wont rip you off and will actually close (too many poser buyrs and too many unreliable hard money lenders).BTW you might learn on youtube about creative financing, zero down;   "lease optoins", "wholesaleing lease optoins".   

I don't know what Texas law says, and again I am not a lawyer and encourage you to seek real legal advice, but it sounds like they destroyed a fence on your property.

A good project manager or a General contractor wont be cheap .

and would they have any liability if they trash or destroy part of the house before leaving?