At the end of their indiegogo campaign (which I did the dev for), I received another $400 but only after chasing them down, and getting a "good faith" payment.
I have full access to the website, hosting, domains, and even the Godaddy account.
In my 13+ years of doing this, I've had plenty of slow payers, but no non-payers (I'm good at choosing my clients) so this is new to me.
Need some advice on how far to go forward with this. The client is in the same state, but about 4 hours away, so small claims is an option, but it takes too long. I'm not a "money" guy. I only work on projects that matter to me so this is a tricky thing for me. Need some advice from savvy business people.