After law school, Beaty married Bessie Buckner, established a law practice and began acquiring real estate. By 1926, Beaty had accumulated large real estate holdings and was living with his family in the East End near Broadway, an elite African American neighborhood.
Beaty earned success and the respect of his community, which was reflected in his appointment as Assistant U.S. District Attorney for Southern Ohio and his service as trustee of the African Methodist Episcopal Church.
Beaty was twice elected to the Ohio Legislature. He was a member of the Committee on Universities and Colleges, the Committee on Civil Service, and Committee on the Soldiers' and Sailors' Orphans' Home. He was secretary of the Committee on Civil Service. While a State Representative, Beaty sponsored legislation that would have amended and expanded the Public Accommodations Act by increasing penalties and specifying the types of public accommodations covered. Unfortunately, the bill failed.
During the 82nd General Assembly, Beaty introduced House Bill 227, "To Prohibit the Representation, by Lithograph, Drawing, Picture, Play, Drama or Sketch of the Hanging, Lynching or Burning of a Human Being, and to Provide a Penalty Therefore." In presenting this bill, Beaty took the floor and made what was generally considered to be the most eloquent address ever heard from an African American in the Ohio House of Representatives. Upon the speech’s conclusion, the House responded by unanimously voting for passage of the bill.