Send a certified letter today so you can prove that they received it.

Today I got a certified letter stating a lien has been placed on the property by the landscaping company they hired but have not paid.

If it’s verbal, they’ll need to document any prior communication or payment records to establish the relationship.If the PM is completely unresponsive, they may want to send a formal written demand for communication and payments via certified mail.

H there, I'm a certified international property specialist and while i don't personally specialize n Costa Rica,  have several colleagues who do.  

* Are you a Certified Property Manager?

I plan on mailing the letter certified and I wanted to know do landlords also call the tenant as a courtesy to let them know about the letter. 

Quote from @Cynthia Lee: Accepting even $1 could be seen as evidence of a payment plan, and the entire eviction process could be derailed.Once you start the eviction process, to not accept any payment unless it is a full payment in certified funds (cash, money order, cashiers check).

Usually it takes them weeks to respond and they come up with some crazy stuff like by business is paying for the trip and need to pay with a certified check outside the platform.

When the IRS audits us, it helps that we have more Certified Cost Segregation Professionals (CCSP's) than any other company in the country.    

I would think that a notice with the addresses and legals of the two properties, including index numbers and such, attaching a certified copy of the name change order to each notice, should be sufficient if recorded against each property.