@Malick NgomGet an attorney to send a certified letter requiring signature and include the satisfactionIn most states a lender can be held liable for damages for not recording the satisfaction

If you did not require your tenant to carry this type of coverage and not name you also on the policy as insured you may be out of luck.  

No financing was required since we were assigning this to a buyer.

The agent will prepare a commitment with requirements for closing including a deed from the party the insurer believes is authorized to sign the deed and any supporting docs they need to be comfortable in issuing a title policy to you w/o an exception for your concerns.

We're actively trying to structure our "buying requirement" checklist to walk through with our tenants/buyers and want to be crisp on our asks outside of asking price. 6% in appreciation in 10 months, not likely :) 

They do require all these things & more!

Note: if your lease requires a greater notice period than the statute requires, comply with the lease.

What documents do they require, what credit scores do they allow, how do they verify previous rental history, etc.?

We can talk about things like the rebalance test time or the required equity contribution, for example.

If so, check your lease requirements.