The buyer of course believing he had purchased the house paid a visit to the tenant, who of course called me.  

Is a retail bank branch the type of NNN tenant I would personally be excited to have as a tenant?

The only ones that will pay are the same ones that would have paid when you filed for the eviction.

House hacking is the BEST way to get into real estate investing and that's how I personally got started as well too.

My personal credit score is a 780 and I have multiple other properties but still not busting the DTI metric. 

I personally love the area and travel there very often.

In my market, I only have one vendor qualified for appliance warranty work, and the warranty companies paid him half his standard fee for each service call. 

Not sure if this is an option in your area, but we have a company called CREW in Salt lake and they are $50 a month and take the cans out and bring them in the day after. it is hard to rely on the cleaners at times. unless the cleaner is paid to do the trash every time.

A relative who does long-distance real estate investing told me that I have to sign the final loan document and the transfer of ownership document in person.

Quote from @Neil Quinlan: Thank you and yes I am vested with my department thankfully and have 15 years until medical is paid.