The first thought is: get yourself quickly to an attorney. This, of course, will incur more out-of-pocket expense for you. Perhaps a phone call to the County/City Attorney and to the pertinent member of the Board of Supervisors, County/City Director.
In this instance, because of the short fuse and financial impact, I'd start at the top and work down. Contact someone at your local paper and try to enlist some media coverage.
Perhaps the attorney who settled the transaction might be a start.