It's hard (impossible?) to say whether $2200 is fair price or not.
Filling out the articles of formation? Pretty easy. We've got a blog post that shows how steps work for Washington state here:
https://evergreensmallbusiness.com/forming-a-washington-state-llc/ and main thing to note is, steps very straight forward...
Filing the 2553 election so you can treat your LLC as an S corporation? That's actually easier to screw up. I've got the steps outlined here:
https://evergreensmallbusiness.com/steps-to-elect-sub-s-status-for-wa-llc-or-corp/ But again this is all a very reasonable DIY project for someone who is good at the details.
The above work, however, isn't all someone needs to consider.
You want to time this whole thing correctly. (Probably OP is too late to economically set up an S corporation for 2019. Probably best approach is to form LLC now... and then make election effective 1/1/2020.)
You want to really run the numbers to verify that the costs of operating an S corporation make sense given the savings. (Tip: Usually you want to be making a high five figure profit or more to make the economics work.)
Finally, you need to be able to handle the additional complexity. You're going to have to set a salary, handle payroll (or outsource that work), run a decent accounting system that generates not just a profit and loss statement but a balance sheet. (Please, no faux "Excel spreadsheet" accounting systems...)
If the attorney will help with this other stuff, it seems very possible paying $2200 makes economic sense.
You might also want to consider working with an accountant who does lots of S corporation work (try to find someone local or someone who specializes in the industry you work in). But note that the CPAs won't have time for this until after tax season. Especially this year with the new tax law.
P.S. I've got a pretty big S corporation FAQ that might be useful if you're still doing your research:
http://www.scorporationsexplained.com/scorpexplained-faq.htm
