Also, here's a link to the National Quilting Association.
http://nqaquilts.org/
They do certify appraisers (I thought) but I can't find the link.
However, judges and teachers are listed by state.
You might want to contact one of the judges in your area. I'm sure they would be able to give you some contacts.
Or contact the NQA directly.
Another option is to contact your local quilt guild. I don't know where you are so I can't help you. But a simple Google search will locate one in your area. The contact person would know who is in the area, or put you in contact with someone who will.