Yes, we should consider MMD Holdings, LLC (Squadron) to be finished. It's a Chapter 7 bankruptcy, which means they intend to liquidate,
not restructure. You may follow the progress of the case here: https://www.inforuptcy.com/browse-filings/texas-northern-bankruptcy-court/3:21-bk-30105/bankruptcy-case-mmd-holdings-llc
If you feel that they owe you something, you can think about submitting a creditor's claim in that case. If it's a big claim, you'd probably want an attorney to
help you with it. Any claim needs to be written on the right kind of form.