It looks like she didn't care about getting her damage deposit money back so she left bunch of trash in the house including her personal items, furniture etc. 

It's an 8 unit, and they have had bed bugs before, and would throw their old furniture in the empty lot and burn it. 

I will hold a 25 year amortization mortgage at 4.5% The owner put more than 1. 2 million into the property when he built it 2 years ago and this does not include the furniture that he is keeping in the property.Please let me know if you see something I may be missing.

I hired him to do furniture for my new house, we did compose the contract with the total budget was $12,000 and given 1 month to finish, did ask him to sign it so many time, and he kept delaying didn't sign it.

There was trash all over , broken furniture , wood and piles of junk ,god know how many piles of dog poop, and an inch thick of dog hair!  

Most prospective tenants that you'd want in your place have their own furniture already (or at least their own taste, which may be different from yours), so with a furnished place, you're generally shrinking your pool of applicants a bit.

New A/C and furniture What was the outcome?

Does anyone stage the property (furniture, etc.) when doing this?

Also, don't forget all the stuff you will need to get started, furniture, full kitchen, linens etc.

Leverage a friend with a pickup truck for the large furniture.