Nobody would have known that was them if they hadn't stepped up and volunteered the information.  All TV shows have a standard disclaimer in the credits explaining why you can't sue them. As long as different names were used, they've got no case whatsoever.

Um…The characters last names in the show were different, I think that by wisely changing the names they have avoided any defamation of character. Not a cool thing to do on the writer's part, but there's no way that 6 million dollars worth of damage was done to the Tamkin's reputation.

That's a way to write yourself out of a job that I hadn't heard of before.  She's writing for CSI, what did she expect would happen?

I would imagine that the realtors are about to get paid. That is really a lousy thing to do, but then again, that is a lousy, shitty show.