So I get that "lag" almost every time, plus I deal with our corporate bank... so they always have that lag. 

But they auto-deposited $50 into my "marketing account."

Auto limits of 250/500/250 and Homeowners liability of 500K should be the minimum you carry.

You can't go wrong with holding the property but again not ideal in your scenario

Should be within the last 6 months sold ideally within 1 mile. 

Investing locally would be ideal for sure.  

And working for a contractor that does flips or rentals would be ideal.

Your name and credit would stay with the existing note, which you would keep paying on - ideally yourself with money you receive from the "buyer", because if they don't pay your credit is wrecked and your house is in foreclosure.If you search on here you'll see everyone and their brother looking to do Subto and it's a nightmare unless the buyer has the funds to pay the note off if/when the original lender figures out you don't occupy the property any more and are attempting to do what you want to do, since most loans are going to specify that performance.  

Do you have an ideal type of and location within TX/Dallas for a flip?

I highly encourage everyone to view the property before putting money down, but that's not ideal for many of them, so I do allow them to rent "sight unseen," but I am very open with them to ensure they don't show up and back out.1.