I recognize the simple answer is talk to a REI friendly CPA (which I plan to do), but I'm curious what others have deducted to less their own tax bill if they just acquire a couple LTRs over time. 

So, talk to a CPA about what you want to do.Also, once you sell a house on Subject To, the loan is still in your name but the ownership is not. 

You can of course always PM me too, I love what we do and would be more than happy to talk to you about it!

There is no DTI when it comes to these investment specific products if you’re worried about not qualifying with traditional products, talk to a investment, focus broker who can help you we out the options and leverage with a DSCR loan

There are risks with any type of investing - and are you talking about risks when you are buying on a lease option or selling on one? 

I may have to talk to my local water departments lol 

Talk to a lender and find out (probably a couple of lenders).Ask here for lenders to DM you (they aren't supposed to DM without you asking them to).Remember, lenders want to loan money - they will work with you to figure what products they have that can work with your situation.

We were willing to pay more, but let him do the talking and then graciously signed on the dotted line!

Some I go direct to, and some I work through third parties/other wholesalers...that experience hasn't always been the best, but let's talk if you'd like.

I would recommend talking to realtors in the areas you are looking in to get more insight and what to expect.