Understand the mechanism
Restricted founder stock may be issued at the outset, with a company repurchase right that lapses over time. The signed documents determine the rights; a schedule in a spreadsheet does not establish them.
Read the departure provisions
Review the vesting start date, cliff, repurchase process, and any acceleration. These terms influence what happens when a founder leaves or the company is acquired.
Coordinate tax advice
A transfer of restricted stock may raise an 83(b) question. Obtain prompt tax advice based on the actual issuance, rather than waiting for the first vesting date.

