Last Monday they informed me that his parents are staying with them for a "few days" It has been a week and they have failed to offer any end date.

I really like to think about it like online dating.

i am not lawyer no legal advice but if he has overstayed it makes it easier, he is not under lease as if lease end date.

LMHA Mail issues: I get mail that's not within 3 days of postmark mail, dated top of form October 23 received November 6th that I had till the 15th to turn in my annual renewal forms.

Quote from @Michael Daley: Quote from @AJ Wong: HI Michael, congrats on the success to date.

I’m sure the prices for things are out of date, but they were always going to vary by market anyway.

Is there a way to stick the BC in some kind of escrow that is controlled by the lending institution so they can continue to cash in on appreciation and then they can cash it in at a later date rather than you doing it today?

From the TREC website:Form Name:One to Four Family Residential Contract (Resale) (Form ID: 20-14)Effective Date:02/12/2018Description:  This is the most frequently used contract form. 

As the saying goes "Date the rate, marry the home" 

Get the easy stuff first - rent roll and lease end dates, any bills the landlord pays - common area maintenance, maybe water, sewer, taxes, and insurance.