[7] Hall spent 2019 with the Frederick Keys, pitching to a 4–5 record with a 3.46 ERA over 19 games (17 starts), striking out 116 over 80+2⁄3 innings.

In 2021, Hall pitched for the Bowie Baysox, but threw only 31+2⁄3 innings before his season was ended prematurely due to an elbow injury.

[12] After starting the 2022 season on Baltimore's development list, the Orioles promoted Hall to the Norfolk Tides in May.

[15] On September 30, Hall earned his first career save after tossing a perfect ninth inning in a 2–1 victory over the New York Yankees.

After pitching a scoreless eighth inning, Terrin Vavra hit a three–run homer to propel Baltimore to victory, and Hall to his first win.

[20] On February 1, 2024, the Orioles traded Hall and Joey Ortiz to the Milwaukee Brewers in exchange for right-handed pitcher Corbin Burnes.