It would seem from these documents that VMP owned/owns the liability of the plant because the execs paid for it with VMP $ and negotiated at time as VMP execs. Salstrom was a VMP employee, on their payroll and benefits, further blurring the employment law lines.
VMP could sell the pressing plant. Use the proceeds to pay off debts and settle the severance lawsuit with the exes. Then, sell VMP, minus plant, to the mystery prospective buyer they cited. The current execs can leave in the transition.
The valuation of VMP would be a question however because minus the plant, they only own what LPs they've pressed, everything else is leased (release rights, rented space, etc). As they have no back catalog of their own (like Rhino, for example), the exorbitant rights leases will be what ultimately drives their costs to a point of going out of business.