Not sure I'd take the threatening approach out of the gate. 

Even with the note being paid, the banks will still send threatening letters.

Regardless, I would think this is grounds for recourse... if you can prove it that is.I would ask an attorney, but probably the best idea is to threaten the agent with a lawsuit and try to get the agent to cough up the EMD, but back out and lose the earnest money if you can't the agent to cough up.

You could have threatened a Quiet Title suit.

I like a few  things about SFH. (1)My tenants tend to stay longer, because it feels like a home, they have more stuff to move, and they have a garage, a yard, laundry, the things that people, leave apartments for. (2) I never get a call from one tenant saying another tenant is bothering them, threatening them, whatever

We waited for over a week on one for the adult child executor to renegotiate terms with the new wife who was widowed as she threatened to sue the estate, stalling everything, unless they agreed to give her a higher percentage than she was left in the will. 

I think we scared them because we threatened to file an eviction order and naming each of the adult children.

I recently threaten legal action and so I met with him today 7/18/19 (side note, true again, he just got out of the hospital for congestive heart failure) and he said he was not asking for more $, BUT....asked me if I could help him out and pay for the plumbing and electrical directly to his people.

While shutting down some businesses and social distancing has no doubt reduced transmission, slowed the progression, and reduced the number of lives lost, the second and third order effects of all the shutdowns and isolation is taking many more lives from things such as suicide, drug overdose, alcohol abuse, delayed testing/treatment for other life-threatening conditions etc.

Besides, you may need the eviction attorney for both the old and new tenants.In the alternative, you can either ignore it because she is an adult, or you can threaten to evict her if her boyfriend doesn't sign a lease.