This isn't Western U.S., but you might want to check it out anyway. Sharon Lowman does an excellent job if you are willing to work hard in class. She is a working appraiser and a former math instructor. I picked up a lot of things with the HP-12C as well as all the basic needed Income Cap info.
The phone number is (660) 826-2020. You probably would have to be willing to travel to Missouri. However, I've been trying to talk her into having a class somewhere like Las Vegas or Northern California, lol.