Many places are considered long term rentals when the term is > 30 days.

If you want amazing appreciation for the long term benefits, the Coast is a solid option.

Also look on Loopnet for any similar type rentals, sq ft, NNN, lease terms, $ sq ft, etc. 

Do people put exercise equipment like treadmill or stationary bike in their mid term rentals?

You may be doing more harm than good focusing on short term monetary gains at the expense of how many in the industry will perceive you moving forward.

We're not sure if moving out of state would be long term or if we would return after a year.

However, my uncle who handles short-term rentals suggests I might could make much more turning it into short-term rental. 

Even looking at the balanced rate (which I feel like is hard because the terms are different) along with the potential to have the monthly payment/fees covered, it feels like a cash out is a better option if we did want to keep this.Part of the current struggle is that the market was hit harder from the rate increase so sales are almost at a standstill and even with trying to sell the house, the rental market is doing substantially better because most military cannot afford to purchase in this area as the payments are over 6k/mo for buying vs 3-4k/mo for renting.Any advice is most appreciated!

I never use the term 'rich' and honestly don't feel we are. 

What are the loan terms?