I removed the chimney entirely and installed a full HVAC system, making it the only house on the block with modern heating and cooling.

Some need to outsource this as they have other responsibilities that would not allow them to self-manage. 

Quote from @Kathy Kifer: @Michael Plaks - I just came across your response to this question.

I removed the chimney and added modern HVAC, making it the only house on the block with it, significantly enhancing its value.

what kind of investment was/is this  a little more detail may protect others if you think this person is a financial predator.  

I removed the chimney and added modern HVAC, making it the only house on the block with it, significantly enhancing its value.

And I used all my rental mailbox money over the last 9 years since I first started investing to buy more and more.

Well I have seen this come into play - I had someone who has a note in florida that was a non-owner occupied loan and the lender claims the borrower failed to make payments on this and attempted to record the deed in lieu.

Count on the rate to be at least 1% higher than where you'd be for a primary residence, and to maybe even cost a little in points depending on the program, your credit scores, etc.Happy to help you think on this more if you want to setup a call.

You are far more likely to find a mentor through in-person networking and building relationships.