She obtained a Juris Doctor; Order of the Coif in 1980 from the Louisiana State University Paul M. Hebert Law Center.

[1][2] Morgan first served from 1980 to 1981 as a law clerk to Judge Henry Anthony Politz of the United States Court of Appeals for the Fifth Circuit.

[3] Morgan joined the Shreveport firm of Wiener, Weiss and Madison in 1981, where she started as an associate and became a partner in 1985.

[citation needed] On January 31, 2019, Morgan ruled against New Orleans Saints ticket holders seeking to compel the NFL and the NFL Commissioner to enforce a rule that would alter the result of or force a replay of the 2018-2019 NFC Championship game.

[8] In June 2024, Morgan ruled that the rap artist B.G., who was on supervised release from federal prison at the time, would be required to provide the US government with copies of any song lyrics that he writes prior to the song's production or promotion, and that federal prosecutors could seek to toughen the terms of his supervised release if the lyrics are judged to be "inconsistent with the goals of rehabilitation.