If I were one of the remaining founders I would offer you the following scheme: 1) Make evaluation of the company asap(say 0.5mln). 2) Define your share as fixe

If I were one of the remaining founders I would offer you the following scheme: 1) Make evaluation of the company asap(say 0.5mln). 2) Define your share as fixed amount (say 125K), as you leave and don't put any more efforts for company to survive, contrary to other founders. Your shares and IP goes to company. 3) In case company gets funded/profitable, you'll get your 125K+inflation. If not - not. That would be fair, IMO.