Is there an increase in population or economic growth?

Both steps help maximize the number of doors over a shorter period of time increasing your passive income and overall ROI.

The heat we control remotely, so there's no issues there.Make your life simple and easy, just up the rent to cover the heat & w/s.

Refinished the original floors (massive value increase), fixed the heating and air system, painted all rooms, cleaned up the yard for curb appeal What was the outcome?

This would be my first crack at a mid-term rental.I've got a property that I'd like to rent mid-term (30-90 days) to increase cash flow compared to a 12-month rental.

It's in Philadelphia and I am assuming a 5% appreciation rate and 1.5% yearly rent increase.

It often results in increased rents for the area. 

Bozeman's allure, coupled with the increasing prevalence of remote work, positions it as an attractive destination for those seeking a live-work balance.

If it's within friends and family then probably a simple (preferably attorney drawn) agreement/contract will do. 

There is a Big build going on with the "Seven Islands" and when its complete it will increase the growth and appreciation in and around Cape Coral over the next 3-5 years.If you are up in Minnesota you can always use the Vacation Home loan to only have to put 10% on any single family.