Why oh why would you agree to become the technical cofounder for 25% of the company when the other cofounder takes 75%? Was there a bunch of infrastructure, tec

Why oh why would you agree to become the technical cofounder for 25% of the company when the other cofounder takes 75%? Was there a bunch of infrastructure, technical or otherwise already in place so that your portion of the work was that negligible? In any case, yeah you still have right with your 25% contact a lawyer.