When a party to a contract passes, their estate is still obligated to perform. 

Their policy may or may not require a certified 3rd party appraisal for any taxable event such as a distribution in kind.Current valuation is all that matters here. 

I’m no great fan of the Republic party “agenda”, BUT, what choice do I have? 

Meanwhile, I'm talking to this guy and he said in his other property, the little old lady paying long term rent, moved out, and within a week, the neighborhood people had broken in, had a party, broke most of his doors, stolen all his copper and HVAC, etc.

Buying a modular or mobile home first and then next move into a single family.Buying a home out of state only having to put 10% down can be used as a short term rental immediately then on the second year you refinance and transition into a investment you only need 85% LTV.The tough part is when a buyer purchases a single family home and then wants to buy a 2-4 unit and say they want to live in a unit.

The jadu would most likely have minimal value or be discounted since of it's owner occupied requirement and therefore, not having the same rights as a traditional 6-unit property.As to the lending part - I am not sure how lenders are going to look at this, since it does now fall under the commercial definition.As to your specific question: It might increase the property value.

What other parties did you involve - lawyer, title company, etc.?

You could write a simple statement and have all parties sign and date:"Landlord and Tenant agree to extend this lease with a new termination date of June 30, 2025."

Closing costs on seller carried transaction are marginal, payments are collected and preferably administered by a third party and qualifying or documentation required is discretionary to the seller.

If the redeeming party failed to pay the money into court when they filed the lawsuit, then the one year did not stop ticking down and now they can't redeem.