now that the bank negotiator is assigned, they will contact and work with the underlying investors...
this essentially means the paperwork and documentation is sufficient for them to move from one department to the next... .and this department will figure out who the underlying investor is, and make contact with the underlying investor
its a good step though... but it could be weeks or even months before they negotiate, accept and agree to proceed to a closing.
Your realtor should be keeping you abreast of the steps and process.... hang in there.
Good luck to you!!!