Self Directed IRA and Digital Asset

Can someone suggest a CPA or qualified advisor to consult with regarding a question about a digital asset and a pre-ICO certificate within a self directed Roth IRA? 

Or perhaps provide an answer here?

This question pertains to changing custodians and doing a transfer in-kind if the current custodian cannot store and trade the token on their platform when it goes public. (Therefore I am not sure if the software keys would be considered going out of custody for a short time if I were to obtain them from the dashboard of the issuer of the token when it goes public, before transferring the asset to the new custodian.)