Or does it not matter so long as they are recognized by the TX bar?

I've been house hacking for the last several years. 

Lastly, try to think of different ways you can add value to that person.

I want to add that this rental business is for vacation rentals/short-term, rather than long term rentals.

As an STR investor and agent in Phoenix, Arizona, I would utilize your local tax records and look at similar new builds in the area (even if they are in different subdivisions - as long as they are apples to apples).

I took too long deciding on the contractor and getting them setup.2.

In the long run adding the bathroom will add to the value of the house for sure. 

Portfolio lenders use more of a DSCR analysis to lending - meaning they are likely to lend to you as long as the investment can pay its debts - more so than a residential lender. 

Seek out neighborhoods where demand is steady or increasing, and take into account elements like conveniences, safety, and the closeness to public transit.Pick a home that fits in with your long-term objectives.

Just last week we got our preapproval letter from The One Brokerage.