Your claim is speculative at best.
If you are concerned about future events, start to document every single incident that leads your to believe that your adviser is treating you in an arbitrary, capricious, or unlawful way.
The rules regulating colleges and universities are different than in the private sector. You will need to consult with an lawyer who understands the Education laws governing the school.
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You will need to appeal the judgment of your advisor to your Dept chair and then to the Dean. Check your university's internal admin appeal procedures and comply literally with all of the regs and requirements. The internal appeal process will require, as Mr. Mallen says, a well-documented chronicle of events evidencing substantive bases for doubting the fairness and objectivity of the advisor's judgments. You need to prevail at the admin appeal because courts will almost never interpose their own judgment to cause the conferring of credit or a degree over the refusal or disapproval of the educational institution.
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