Absolutely email every school you want to attend and provide reasoning along with your LSAC # and often they will provide a waiver. Keep in mind, the CAS fee will typically still be required, but it still saves the bulk of the costs.
depending on how you do on the lsat in jan, if you havent taken the test, schools will email you through LSAC referral with waivers....both apps and cas waivers.
You can submit sooner. I am applying for Fall 2025. The LSAC website (CAS system) will save the letters and then you can send them to the schools when the applications officially open.