What is a Writ of Execution!!

I live in Maine, I just got a letter in the mail from my husbands exwife lawyer, its a Writ of Execution. Its filed with the District Court. I will try to give a short summary of the letter. Starts out " To the sheriffs of our several counties or any of their deputies, then the date, name of court,my husbands name, sum of money he owes, then its says " We command that you cause the goods, chattels, or land of the debtor within your county to be paid and satisfies to the creditor' then its got the amount of money" "with legal interest from the date of judgment. " Writ of Execution, and make return of this writ within three years from this date. Ok this was my summary, Please anyone explain to me is this a lein on my house, or can they come take my personal items too. We make payments on this judgment every months but her lawyer stated to us he is gonna take everything we have plus our only home, which our home isn't nothing to brag about we are trying to fix it up.His exwife will stop at nothing to take everything we have, we do also pay her alimony 375 a month for the rest of his life, we tryed to fight it but lost, my husband is signed up for disablity but it doesn't matter in the court system of maine so we have a hard time paying that bill also but we mail in every month what we can afford without going hungry. So the writ of execution is for the arrears on alimony and her lawyer fees with is 5400.00 , don't we have some type of exemption so we can keep our home!!! Thank you for reading about my problem,, Kim

[Law200]

See http://www.worldlawdirect.com/article/935 -- Collecting on a court judgment.