If you're planning to transfer an angel investment as a warehouse deal, what should be the minimum size?

As a general rule of thumb, the minimum transfer of a previous angel investment into a VC fund should be a $25K position at cost. Transfers should resemble, as much as possible, what an actual investment looks like in terms of stage of entry, sector and amount. A transfer should never be less than 10% of the target investment amount of the final fund, so, if a fund is planning to invest $1 MM, then the minimum transfer should be $100K.