ADA
No merit to claim based on denial of accommodation, as the agency initially engaged in an interactive process and the bona fides of the claim weren't established at the time of eventual denial.
Ending of employment not a valid basis for claim of retaliation, as plaintiff has burden to prove actual connection, and not just temporal proximity.
https://www.cadc.uscourts.gov/internet/opinions.nsf/A307330F9F02514885257F2A0054809C/$file/14-7118-1590897.pdf
Since 2011. An occasional commonplacing of the U.S. Circuit Courts of Appeal.
Neither an authoritative statement of the law nor legal advice. Quick work.