No. Because the Rep Payee account is not owned by the beneficiary and the other account is. IMO, you'd need a court order to take funds from the Rep Payee account to pay the overdraft in the other account, or a cooperative rep payee.
The funds in the rep payee account may be the beneficiary's funds, but he doesn't own the account and can't withdraw from it.
John S. Burnett
Fighting for Compliance since 1976
Bankers' Threads User #8