s example of a house worth $100K with a $60K outstanding balance, the total owed is probably closer to $75K with all the fees and foreclosure costs. 

You never know until you ask, and so far everyone here on this site has been outstanding with answering questions and directing me to the info i was searching for...

ALWAYS close through a title company so any outstanding liens, judgements etc are paid at closing. 

Buying the tax certificate gives you No advantage in eventually owning the property.....it would later have to go to a Public tax deed auction, after you paid off All of the other outstanding certificates, probably 10 times your initial verticals purchase amount, then you’re still bidding against everyone else, less the credit for what you already have out of pocket.

Historically there has been outstanding property and rent appreciation. 

The grandmother still owes roughly 100 thousand on the house, and her power of attorney is willing to let it go to us for the price of the outstanding balance.

Terms of Consideration:In this mutual termination, both landlord and tenant agree to the disposition of deposits and financial responsibilities in the following manner: Landlord will return security deposit by June 6, 2018 less damages caused by tenants, missing items and outstanding utilities/water bills.We'll fill in the terms later but do you think this is good enough? 

As Wayne and Harjeet said, if you do have an FHA loan outstanding and are forced to move, you would be exempt from the rule and allowed to obtain an additional FHA loan. 

To do this You have to pay off all the other outstanding certificates, plus the county’s 18% interest, plus some some fees.

Your credit doesnt have to be perfect but you cant have any outstanding items for example recent bankruptcies, not current on most things.