We don't have synonyms for remitters yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are remitted, remittent and remitter.
(n) :
(law) The sending or placing back of a person to a title or right formerly held; the restitution of one who obtains possession of property under a defective title, to his rights under some valid title by virtue of which he might legally have entered into possession only by suit
(n) :
(law) The sending or placing back of a person to a title or right formerly held; the restitution of one who obtains possession of property under a defective title, to his rights under some valid title by virtue of which he might legally have entered into possession only by suit