Before joining Coffey Modica, Amiah was an associate and trial attorney in New York. There, she appeared at administrative hearings, conducted depositions, and drafted legal documents, including memorandums of law, appeals, and summations. Her experience includes claim analysis, settlement negotiations, and trial preparation.

During law school, Amiah gained hands-on experience through the Business Start-Up Clinic and Corporate/Government Counsel Externship Clinic, where she handled contracts, bylaws, trademark and copyright matters, and litigation preparation for local entrepreneurs. She also completed a summer fellowship with a legal research center, focusing on ocean, coastal, and Great Lakes laws, with an emphasis on issues affecting Indigenous and underrepresented communities. As a legal attachment to an international marine services department, she worked on policy management and UN regulations. Additionally, she served as president of the Black Law Student Association, was a pro bono student leader, and participated in a regional trial team competition.

Beyond her academic pursuits, Amiah has volunteered with the Legal Aid Society of Mid New York, Brooklyn Defender Services, and the Sugar Law Center. She is also actively involved in community service, including founding Project One and serving as vice president of IGNITE at G&F Financial Group.