Most lenders will do a hard credit pull before presenting a formalized term sheet, but that is after a property is under contract and your offer is accepted/you submit a full application and send in a credit authorization. 20% down with no STR experience is pretty normal on the market, but you will likely be using a haircut AirDNA projection instead of the full 100% to qualify you. 

Additional costnot included will be the incurred costs of city inspections, permits andunforeseen code additions""Any change orders will be authorized before work is performedAdditional Bill for Permits, Engineering and Code supplement will bepayable upon approval and payment (documentation provided)."

Exceptions are made for authorized family members, police, courts, official government business, and where the utility determines that the public interest in disclosure clearly outweighs the public interest in nondisclosure.”That said, it may still be worthwhile to submit a public records request.

It's essential to get all the information you can about the squatter: did they ever have a contract with the owner, how long have they been there, how many are there, has anyone told authorities, do they have access to any utilities you'll have to pay for, etc.

If we name someone other than our daughters as executors, that person cannot make a deal with you as the authority to sell the property passed to our daughters, the trustees, as the property is now in their hands.

Yes, you're correct about the unincorporated County area, so the County is the authority, not the City. 

I called the Houston Housing Authority and they said my property would get approved for up to $4313 as a section 8 long term rental.

I was hopeful that time would resolve or lessen the bad relationship that my friend has with neighbors and authorities.

Read and study Principles of Real Estate Practice: 6th Edition by Stephen Mettling (Author), David Cusic (AuthorOr a similar text.  

Anyone telling you there is, is either lying to you or, obtaining nonpublic information without the authority to do so.