Does the Custodian of an account for a Child have to be the Custodial Parent?

[MacTigger]

My son (12) is inheriting a beneficiary IRA from his late grandmother, my mother.

My ex has legal "custody", but of course I have visitation and pay child support, etc.

So, in filling out the paperwork for the new account for my son's beneficiary IRA, can I sign the paperwork as the "Custodian" of the account, and manage the account until he is 18?

Thanks.

Mac

[macuser_22]

That is a legal question, not a tax questions.    We cannot give legal opinions here.  Ask your attorney.

[MacTigger]

Thanks.