I'm wondering how much specifics I need to include for each line item. 

For the STR rental loophole, which is what you appear to be referring to, you need three things:1.

The best place to start is with a spreadsheet that has every every cost itemized. 

Texas does have specific rules regarding home equity loans and cash-out refinancing (often referred to as "Texas Equity Section 50(a)(6)"), but these don’t prohibit homeowners from using funds for investment properties.

It is not your responsibility to house this person's items indefinitely in your rental. 

By making partial dispositions, you can also avoid subsequent recapture on these items when you go to sell.

Is it better to be  referred to one than to continue wasting time looking for one?

I’m assuming the deal you’re referring to is somewhere other than Texas. 

For reference, I am 30 years old and not married.

One your loans will be a higher interest rate, next you will have annual filings, the cost of a registered agent every year, and items like that.