But operationally the LLC is a liability protection tool.Your best and simplest bet is to follow . through on your idea to 1031 but don't just buy one property. 

If they have already broke ground, then you can bet they have projections on revenue. 

Here are basic stats on single-family home sales for May 2019 for the City of Austin and the greater Austin area:Major commercial real estate developers and top-tier tech companies continue to place large bets on the continued strength of the Austin and Central Texas economy.

I think 200$ plus is needed to have an actual cash flow that can be a safe bet.

If you look at the properties listed for sale now I would bet the owner probably purchased it 10-15 years ago and they are selling for around the same price they purchased it for.2. 

Wondering what’s my best bet as I had contacted a local bank which only willing to do it on the purchase price.

So, I'm starting again and taking it step by step for I think would work bet for me. 

If you can qualify for an SBA then by all means that is the best bet but there is a scenario that would work that includes you taking on a commercial loan or even a bridge loan just to get into the property until things are up and running 

A) Spending $5,000 a month on overheadb) Spending $5,000 a month on overhead, putting earnest money down on a house, betting on yourself that you can sell it in less than 30 days?  

After that, all bets are off.