If you use YOUR bank as an escrow agent, you should be safe. However, you must make sure that the leasing agent pays any fees associated with this process. Generally it is standard procedure for them to pay and it should be a deal that they already have with THEIR bank.
When I lease people, I never have them send the draft back to me. I always ask land owners to turn the bank draft and the Lease into THEIR bank. The bank releases the Lease to us and the money to the mineral owner at the same time. In my opinion, this is an excellent way to do business and well worth the fees associated.