The final part of the process is to pack non-shrinking grout into that remaining gap between the new foundation pour and the old foundation wall.

If at all possible it is best for the property to remain occupied.  

So, looking forward to my cash out payday (my fam's plan is to live off the difference in the equity cash out from the cash I invested, all rent will remain with the property until paid off). 

If the property doesn't sell at auction, it remains in the name of the owner of record, and will be offered again for sale if the taxes remain unpaid. 

Sorry for the crude quotes I'm on mobile, even paying down the late CC's and showing positive payment history will not improve their scores in the short term, very likely the CC's will balance chase dropping their available credit at every payment, keeping their utilization high unless they are paid to zero in which case account closure is possible, a hit either way, the fresh late derogatories will still remain to keep their scores low."

We will identify the tenants for the remaining 25% in our feasibility period (90 days).  

There certainly is no guarentee that she is remaining in her apartment.  

I've had two flooring contractors look at it (I don't DYI) and neither was thrilled with the idea of refinishing the floors in terms of sanding and staining, one citing that there would still be gaps remaining.

I have an opportunity to purchase a home from a woman who wishes to remain in the home and lease it from me.

In one year from now, I would then get a bank loan for the remaining balance due her?