I have been advised by a parent that the contract she signed with me is not legally binding as I am a privately owned. She has discontinued care with no notice as she was fired from her job. If she were a single mom I would be more understanding but it came to the point in our texts (gosh I hate texting lol) where she said the $500 shouldn't make or break me.. but it does. It won't to her as her husband makes a ton... which is all beside the point as I shouldn't have to justify why my contract is binding. What legal regress do I have?