I'm on some distribution lists and regularly see "renegotiated price" on offerings because they can't unload them at the contract price + their fees.

.), hire and vet a Prop Manager, and use a regular 30 year mortgage to buy a property on market. 

See Facebook group for more info “Why ICF Construction is Best for Real Estate Investors” These are slab homes with a frost wall, ICF has its place in many situations but this isn’t one of them, I do concrete for a living and have access to regular aluminum forms 

The tenant paid on a monthly basis until exercising the option to purchase.  

There's not necessarily seller financing calculators, just put in the numbers into a regular calculator.

While I am about to provide a 3 day notice to a tenant that I communicate with regularly and whom I've worked with for 2 years, is there anything I can or should do to fix this now or does it not matter?

I was thinking that the units would be full in the summer and that they would also do much better in the off season than a regular 7 bed house because in the off season there are many more people looking for smaller units and not entire families coming for vacation.  

As you move below C you get into really dicey neighborhoods, or deferred maintenance nightmares, or tenant classes that you might not want to have to deal with on a regular basis.  

There are high-end homes popping up on a regular basis and they are closing down the shore motels and run-down buildings in the area.   

There are gems out there regularly that are waiting to be found.