Here's my experience with "model schools." They sign you up for.... $1,500??? Sound right? They "teach" the prospective model some basics about walking, the job process, makeup -- reasonable stuff. They sign you to a representation contract for a year. Then you never hear anything......
Get a list of agencies in Seattle. Call and ask if they have open calls -- when the prospective model can walk in and get looked at. Before she goes, have her talk to some folks that are modeling -- there are plenty of Seattle area models, send a few e-mails to folks listed on GG. Take a few pictures of her yourself, light makeup, face shots, full length in a swimsuit. DON'T try and be creative with the shots. Something that is clear and technically correct. Put the 4x6's in a small book.
When she goes in and talks to someone, it's important that she knows why she's there and what she wants to do. She should wear crisp, fashionable clothes and look very presentable. If they like her, think she's serious, and has the look they want -- she might get an opportunity to do some tests or maybe some work. If the agency asks to have her pay for a photoshoot -- that's probably OK. Check out the rate against what's customary, and see if they direct you to a specific photographer (kickback?) or let you pick one.
The stuff the model school would teach the model she should pick up in working the business. The agency will help her along.
Just curious. How tall is she? What kind of modeling does she want to do? Fashion, promotional, commercial? If she doesn't know any of that -- maybe a conversation with someone that actually works in the Seattle market would be helpful.
Best of luck