Was it an outstanding loan balance paid off? 

A few things:Photo/Video document every move-in/move-outDocument the move-out dateHold any personal property according to your state law before disposing of itPerform all repairs quickly (not just estimates), deduct back rents, late fees, and repairs, cleaning, personal property storage, garbage removal, etc. and return the balance of the security deposit (if any) within your state's statutory periodThe property not being broom clean is not a reason to withhold a SD balance -- the reason is that you have a statutory period in which to return it.  

Assuming you have a reasonable interest rate,   the payments shouldn't be too bad on a 400k-ish balance,   especially compared to anything comparable you might try to replace it with in the same area.   

Got the seller to hold a note for 10%, was approved for 80% from the bank, but I hadn't gotten the balance figured out yet.

Also, finding a balance between how much to offer and time frame is something I am uncertain of.

Obvously, if Domestic Automotive failed, so will Detroit, and it did.Essentially, I balance the risk of some sort of decline in value, either economic or physical damage, during a small window where we are vulnerable until the rents move up to a point where we are no longer as vulnerable.

As long as you maintain the balance of $3K, its free.

My goal is to create sustainable and robust housing demand/supply balance hence producing a constant, affordable housing option for majority of the people along with time.Please suggest and/or connect if my goal sounds interesting to you!

This is helpful for picking up where I left off when I am busy and can't go through everything in one sitting.The first real steps are running through some initial filters for things like: key states, property type, loan balance, est value, etc.

I met with the seller yesterday and after going back n forth about my financing terms, it turns out it would not allow me to get one of the homes paid off until I have made the down payment of 45k, paid the mortgage down to $180k, then paid 1/3 of that balance to have a home signed free in clear in my name.