Is a sheriff necessary when doing eviction?

[Frankie Betancourt]

Hello If you are doing an eviction and you have WON the case in court is a sheriff necessary? The reason being is this Person i never had a lease with or rental agreement comes and goes from the property and is NOT living in it.. So after 2 years of Court dates i finally Won the Case And my lawyer served him with Eviction papers. So the issue im having is This trespasser comes and goes as he pleases to destroy the property but  never stays the night At the property because its CONDEMNED he has cut plumbing lines Gas Lines , cut hardwood flooring broke walls windows removed furnace water heaters etc. So i decided to change the locks and board Up the windows Myself. So apparently he showed up while i was boarding up the house and told me i Needed the sheriff to do so i told him no i don't because no one is Living here the house is condemned and full of TRASH. He told me ill be hearing from his lawyer but i Have Already WON the case in court. So what i have done is it going to be an issue? or what happens if he decides to break into the property again would i have to go trough the whole eviction process over again? I have also took pictures and video's of how much damage has been done to the property