@Sheri Rolfe, generally speaking unless the buyer has violated the terms of the contract in a way that allows you to terminate it or unless there is specific language allowing you to terminate it then no you should not be able to.

Only the built in 2 work The batteries might be bad. 

Make sure it explicitly explains the process for termination if you are unhappy with their services, especially if they violate the terms of your agreement.3.

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Make sure it explicitly explains the process for termination if you are unhappy with their services, especially if they violate the terms of your agreement.3.

Make sure it explicitly explains the process for termination if you are unhappy with their services, but especially if they violate the terms of your agreement.3.

Given the above, it seems the question is as to whether the loan balance still falls under the decedent's estate as an unsecured debt (since there's no collateral) that has no bearing on the title  - or if it's secured under which the lender will refuse to terminate the UCC-1 filing until the loan is satisfied. 

I don’t have a good reason to terminate the lease.

You are terminating their lease, which is done without court involvement.I recommend you present the tenants with an introduction letter as soon as you close on the property.

Termination Clause: If things don't work out, define the circumstances under which either party can terminate the contract.7.