Were you able to make this work? I went this morning to apply for TSA precheck. Due to my birth certificate having an apostrophe, and my drivers license not having an apostrophe (and Ohio BMV system doesn't support characters of any sort), I decided to apply for a passport rather than be rejected because it doesn't match.
Having read your email, I called Southwest airlines to see if they could put an apostrophe in my name and, as often the case, their system won't support it. Did you find a way around it with AA? I dont' want to waste my money on TSA Precheck if it isn't going to work.
I'm surprised they haven't been able to fix this issue yet. There are a lot of us with apostrophe's. Can you offer any support?