Beth(posted 6990 days ago)Regarding your questions.
1. Your chances of setting the warrant for possession aside will depend on what evidence you have that you were not joint and severally liable for the debt. Alternatively,you need to prove that the warrant was in anyway executed oppressively or was an abuse of process or fraudulently obtained.
2. I do not know but would suggest (if you cannot afford a solicitor) that you visit your local Citizens Advice Bureau.