I am looking to find a local bank/lender that can provide a commercial loan on my future purchases.

Like I said in the previous paragraph, we are looking at buying more rentals in the future, so you may be asking why we would want to sell this one. 

Use a general warranty deed so it does not cloud title for future sales. 

Move forward with your investment, and use the education you have received on this deal to better your prospects on future deals.

I'd appreciate advice in how to structure this specific kind of deal:- Current owner is a neighbor/friend, who is 75 and wanting to get out of two duplexes in the near future (4-12 months).  

Short-term rentals might fall under Loudoun's new laws about AirBNB-type rentals, which at this time require only registration (taxation and permits likely to come in the future).

Below I've outlined several topics I think about when analyzing future trends.

If you are satisfied with the bank's answers (realizing things will change in the future) and the numbers work for you, then it is a go.

If not, keep me in mind, maybe we'll work together in the future!

We have 3 projects going currently, and more in the pipeline, so there's more work in the future as well.