Even if MSM was granted a power of sign at some point (which, looking at her reaction, it wasn't), it's still a forgery because all contracts are invalid. And Seth personally admitted that forfeited LLC is indeed the one and only legal entity for MSM. Unless it was granted to him personally, which is still all kinds of fishy and legally questionable.
He'd be smart to shut up and be thankful for not being gangbang sued into bankruptcy. He likely fucked around enough to get an option of jail time in court.