On Dec 29, 2021, D.R Horton Seller texted me, and he wants to cancel the contract after I told them that I want to choose my own lender.

The LTV amount is determined by the lender, your qualifications, and loan terms you choose.

My thoughts ar first based on 1) are you an accredited investor, or 2) not yet accredited.Assuming #2 based on your call for help:Plan carefully to see your SFH/SFR in Austin through a 1031 Exchange and buy multiple SFR properties in a different area.Learn the rules of 1031 to be sure you can make it correctly, choose a good QI, get a god realtor to start looking.In the hot market of Austin, I would assume you can sell quickly once your new exchange properties are found.Once they are found sell the Austin property.

Depending on the appraisal and the loan option I choose, the cash out amount could range from $0 (low appraised value + 75% LTV fixed loan) - $80K (high appraised value + 80% LTV 10/1 ARM).

To go along with "where do most tenants work," a good follow up can be why do people choose to live here?

If they do get turned on, I believe seller would be liable for any issues as you do not own the house.As for them signing contract saying they would but not choosing to, your likely only real world remedy is walk away and not buy house.  

I ended up choosing to go with my current primary mortgage lender, after doing due diligence.

It makes it an LP syndication that is a tenant in common with another investor (you).If the syndication is working with their own funding they can generally do this if they choose. 

As of recent, I've been going deeper into Pace Morby's content and love his take on mindset, approach, choosing the right set of people, etc.Look forward to connecting with you all! 

Choose the one that best meets your needs.