The word repossessing is playable in Words With Friends™, no blanks required. Because it is longer than 7 letters, you would have to play off an existing word or do it in several moves.
Words With Friends™ Letter Score: 18
Highest Scoring Words With Friends™ Plays In The Letters
Seven Letter Word Alert: (43 words)
engross, genesis, gossips, greisen, grosses, ignores, ingress, negroes, openers, osseins, peering, penises, peonies, persons, pigeons, pingers, pingoes, pioneer, poesies, possess, presses, prisons, regions, reopens, repines, reposes, resigns, respins, seeping, seniors, sensors, session, signees, signers, signors, singers, snipers, soirees, spinose, sponger, sponges, sporing, springs