I don't have any idea where to even look for someone with this kind of expertise. I am more than happy to pay for a consultation, is there someone in the community that is versed on these kind of regulations?
Why not ask an AI assistant? It seems to me that they have become quite good at legal matters. At the very least, its opinion could serve as a starting point for further research.
BTW, how do you plan to address the problem that will inevitably arise from the fact that, technically, you may retain a copy of the key after transferring the wallet? I imagine there will be plenty of people willing to buy a wallet, withdraw the coins from it, and then claim that you were the one who did it. And if this happens repeatedly, you really will become the prime suspect.