Looking forward to hearing your tips and sharing what’s worked for me too. 

Credit card receivables are much more clear cut.

I know some mentioned about developing banking relationships and I totally agree with that, so here is what you do. 1) Open a business checking account in the name of your LLC to hold the assets. 2) Deposit your cash into that account to fund the real estate purchases3) After owning for 60-90 days, talk with a local lender about a line of credit against the 2 properties at 60% LTV. 4) After about 30-45 days, have the line open to use if you need that liquidity that you used, but until then you are not paying 7% interest on nothing. 

Any tips on how to find/market to owner finance buyers that have brought you success?

I am finding that most credit unions will only do helocs on primary residence.

What documents do they require, what credit scores do they allow, how do they verify previous rental history, etc.?

Here are a few tips as you step out on your own: Attend local REI meetups and events in DFW to connect with other investors and contractors.

•Any tips for navigating financing as a non-resident or alternatives like seller financing.If you’ve been through a similar situation or have insights into the Canadian market, I’d greatly appreciate your input!

There' s a buyer who will credit me the value of the lots towards a finished and tenanted property in their inventory.  

I have the credit and will be funding and backing the loan.