I think that founders stock before a venture financing should be subject to the same general vesting terms as one would expect after a venture financing. A typical vesting schedule is four year vesting with a one year cliff. This means that 25% of the shares will vest one year from the vesting commencement date, with 1/48 of the total shares vesting every month thereafter, until the shares are completely vested after four years. The vesting commencement date can be the date of issuance of the shares, or an earlier date, in order to give the founder vesting credit for time spent working on the company prior to incorporation and/or issuance of the shares.
From Yokum Taku’s Startup Company Lawyer blog.
Spent some time today trying to get various legal and accounting issues taken care of before we start letting people try out our private beta.