this is not  a legal advise but just a suggestion:

1099 is filled out before you actually begin to work not after termination.  So you have a very good case.  Filing civil case is easy, look up state laws etc..I think its about 30 bucks.  Also there are loads of free lawyers provided by the govt. 

Tell her you want every single penny and interest on it for the time not paid.  Legally you are eligible for it.