It is important to prepare your students for the financial cost of going through the law school admissions process. It can get quite costly, which is why it is important for students to ensure they are properly submitting their applications and adequately preparing for the LSAT so that they do not have to repeat any part of the applications process.
There is help, however! Some law schools are willing to offer waivers for their application and may even offer CAS waivers. Encourage your students to ask the law schools they are interested in if they offer application fee waivers. Also, if a student is experiencing a financial hardship, LSAC may be willing to offer them a fee waiver for the LSAT and even for the CAS.