I may not even go the partnership route but I am interested in just learning about all the options I have. 

Just trying to see what is the best option. 

none of the above  Any insight into other options?

.- Suggest you try to network with other landlords in your area, check MeetUp app and others.Your other option is to hire an attorney, but understand you will have to pay them for your ignorance.

I don't have any brand preferences personally (I use Fantasy Spas at most of my units but I'm sure there are alot of reputable options), but just make sure wherever you place it is built to handle that type of weight.

I still think that the appreciation question boils down to the "Do people with options want to live here?"

Showdigs is another great option for landlords in your situation.

Option 1.

Lenders can have different loan options based on the property type and the amount of rehab (if any) required for the project. 

I've been doing some light reading, and it sounds like refinancing that property and using the proceeds to reinvest elsewhere might be a better option.