Ouch. I can provide no advice based on experience but since the acquisition offer has been revoked, I would suggest for next time to do the following calculus:

Ouch. I can provide no advice based on experience but since the acquisition offer has been revoked, I would suggest for next time to do the following calculus: In one year, if I agree to his terms, will I /really/ be that much worse off? Will I be so poor? If not, agree with a stipulation that it is to be completed within X timeframe otherwise they get the old share. If so, be prepared to lose it all. 9/10 times, you're usually better off capitulating and making sure all your friends know NOT to deal with this guy. Anyway, good luck.