i would go to startup biglaw with this (e.g. Gunderson) they will have seen this before and know what to do, expect 15-20k in fees but you’re selling millions right?
As for counsel, I recommend George Grellas. Have worked with him before and had a good experience.
On the other side, these hedge fund people say their lawyers are getting all clever and stuff, but the contract says that even if the company decides to nullify the shares involved in the agreement, I still need to pay them the equivalent dollar value which basically means they're just looking out for themselves...
In current state, the securities are worthless (due to possible transfer restrictions). Your objective is to figure out how to make them worth something to someone.