A writ is a legal order or command, an official mandate requiring the performance of a specific act. Examples of writs include a writ of possession, writ of execution, writ of garnishment, etc.
Presumably the writ referred to in the question would have something to do with a home or other real estate.
they have to have a writ of assistance
A writ of assistance
To search a colonist house a British customs officer presented a writ of assistance. This allowed the officer to enter and search the home.
house search is the answer
Hope your not in that situation, but you can hold out until they come with a writ and a few heavies.
Writ of Assistance
"And Having Writ..." has 64 pages.
And Having Writ... was created in 1978.
A 'writ of REPLEVIN" maybe?
Just go to a cave right of Oshu's house, writ the number 7 and you will have the sword.
A writ of right is a writ which lay to recover lands in fee simple, unjustly withheld from the true owner.
A writ of mandamus is a writ which compels a government entity to perform mandatory or purely ministerial duties correctly.