We've gone the Cashier's Check route because it preserves the bank's interest in the property and the repair process and provides customer service.
We need to ensure the property goes back to its original or better condition, that contractors and subs are paid and don't create liens later and that the customer is properly serviced and approves of the work.
Creating a DDA can do this for you as well, but seems to open the need for dual controls and auditing. But so long as your objectives are met, any safe and sound process will suffice.
When I do my taxes, I'll call for your NPPI.