I am happy with what I will net with this buyer but is it still the smart move to terminate and move on or should I just wait?  

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.

I have a term in my (Washington State) group lease which says somewhat unnecessarily that if all parties agree then a one-page Extension Addendum will be acceptable and will modify the current lease no more than by changing the end date by one year and the rental amount by the change in the Zillow rental index for the area, and that such an extension should be signed a month before the end of the term of the current lease. 

You can then offer them an option of early termination, as it can be easier to find a good place early summer than in August. 

MIL couple upstairs have now given notice they are terminating their lease under military clause.

If there is a contact between us that states they are owed a certain amount of monies for early termination.

They battery went out on the garage remote and they told me the garage door was broken. 

Tenants leasing for more than 15 years gain the right not to see their lease terminated by the landlord.----- Before my first lease contact I will read the law and ask an attorney of RE for their experience in this subject, just to be sure.----- A quote from the article that explains this:"Proteção especialOs arrendatários idosos e portadores de deficiência terão uma proteção especial.

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.

A piece of advice a  lease that end in the winter in the northeast I have not found to be the best however there are those that swear by month to month leases with required 30 or 60 days notice by either party to terminate written in the lease.