OPINION AND ORDER Plaintiff Robert Littlejohn brought this federal lawsuit against his former employer, Defendant Consolidated Edison Company of New York, Inc. (“Con Edison”), alleging claims under the Americans with Disabilities Act (the “ADA”), 42 U.S.C. §§12101 to 12213, the Rehabilitation Act, 29 U.S.C. §§701 to 796, the New York State Human Rights Law (the “NYSHRL”), N.Y. Exec. Law §§290 to 297, and the New York City Human Rights Law (the “NYCHRL”), N.Y.C. Admin. Code §§8-101 to 8-131. Broadly, Plaintiff alleged that he was wrongfully terminated from his position at Con Edison in 2016 because of the company’s unwillingness to accommodate his serious medical condition. Before filing the lawsuit, however, Plaintiff had filed two union grievances that were consolidated for arbitration, the first of which related to a 2015 disciplinary incident, and the second of which related to his 2016 termination. While this litigation was pending, in October 2018, Plaintiff appeared with counsel and his union representative for the arbitration proceeding, but then entered into a settlement agreement in lieu of arbitration (the “Settlement Agreement”).Defendant has moved to dismiss this case, or alternatively for summary judgment, on the grounds that Plaintiff’s claims are barred by the Settlement Agreement and its attendant release provision. Plaintiff claims that he attempted to revoke his consent to the Settlement Agreement, and that it was not knowingly and voluntarily entered into. For the reasons discussed in the remainder of this Opinion, Defendant’s motion to dismiss is converted to one for summary judgment, and is granted.BACKGROUND1A. Factual Background1. Plaintiff’s Employment with Con EdisonPlaintiff was employed by Defendant from July 2002 until February 2016. (Def. 56.1 1). Prior to his employment with Defendant, Plaintiff had obtained a high school equivalency diploma and had served in the United States Navy. (Id. at 2). At Con Edison, Plaintiff first worked as a General Utility Worker until he was promoted to the position of Distribution Mechanic. (Id. at 3).2. Plaintiff’s Medical IssuesIn 2011, while working at Con Edison, Plaintiff was diagnosed with a serious heart condition. (Def. 56.1 4). As a result of that medical condition, in September 2015, Plaintiff’s physician determined that it was unsafe for Plaintiff to lift more than 20 pounds. (Id. at 7). Due to the lifting restriction, Plaintiff was unable to perform an essential function of his position as a Distribution Mechanic. (Id. at 9). In addition, Plaintiff was ineligible for Con Edison’s retraining program because of a prior suspension from work in February 2015. (Id. at