You are operating a business that can put you very quickly before a judge if you do not know the law.

So slap yourself, right now and declare never to let an agent do "dual agency again".

You need to find out who is the personal representastive ( that is the person was will receive the Order to Sell from the court), it  is a document signed by the judge.  

I am not a lawyer and you need the advice of a local attorney - - I am reporting ONLY what I have been told, so it's third had info to you from me.A WILL communicates Who gets What, but only AFTER going thru probate which wastes  a  lot of time and can be expensive.A Living Trust is similar, but declares Who are the beneficiaries as well as the Successor Trustees who will act as the Executor(s) of the Estate after all of the trustees who formed the  Living Trust demise. 

Put that weasel clause in your lease and see how hard a judge will slap you. 

It is up to the judge or jury to decide what is "fact".

Sure - you could go to trial, attempt to sway the judge/jury that you have enough proof that this individual stole your property... but then what?

A Judge will agree that the tenant is responsible for reimbursing you the costs of lawn care, and that it is a perfectly valid cause for eviction (non-payment of outstanding costs). 

If there's any kind of law on the books in your neck of the woods TREAD VERY CAREFULLY FRIEND, God forbid the tenant takes you to court and on the morning of your hearing the judge and Mrs. judge have a knock down drag out over her dead beat brother and unfortunately YOUR A DEAD RINGER FOR THE DEAD BEAT BROTHER.

Judges normally will side with the tenant, so you want to make sure that you are not violating rights.