They set their own (very expensive) prices for repairs, tell you very little and then get moody when you question why they're throwing enormous invoices at you on a very regular occurrence.Back to the threat of the lien - if they ignored me querying their invoices and went ahead and applied a mechanics lien to my property, how do I contest it (or return the favor to them), when or how will I get to hear about it, do they have to re-apply it every year to stop me selling the property (which I do not intend to do for another few decades, if ever), can they put extra costs & interest on the lien and can they apply to the courts, at any time, for a foreclosure to settle what they say I owe?

After Boston regulations took effect, over 3000 STR listings disappeared.

He then disappeared. 

But how come it seems to be so impossible to rent by the room without a hanging threat of HOA lien over your head??

Are they just scouring rental sites and assuming every property that disappears was rented?

IF he is dishonest those cameras disappear when you leave town. 

Since my lawyer says the contract is enforcible, the threat of litigation is at least leverage.

This particular PMC has a very aggressive termination fee and one of the partners in the company is an attorney and they intimidate owners looking to terminate with threats of property liens and lawsuits.Who still wants a short contract?

It kind of disappears.

Do I just ignore the threat and hope to get more information next time when he inevitably calls again (since clearly if I don't know who he is I can't remove him from my list)?