No except in Texas (see Texas). Any manufacturer can complete and file the utility study.  Because the states require accurate studies and will deny studies with insufficient information, most states prefer the work be submitted by a professional.

Contingent on savings. If there’s no savings, no fees paid to On Your Mark. On Your Mark’s fee is only charged to client after client obtains the exemption and refund (if any). No additional charge for On Your Mark representing its clients in the appeal process.