[3] Hyslop served as Principal in the Spokane, Washington, office of Lukins & Annis PS, where his practice focused on complex commercial and business litigation in the state and federal courts.

[3] Hyslop previously served as the U.S. attorney for the Eastern District of Washington from 1991 to 1993.

[3][4] On May 3, 2019, President Donald Trump announced his intent to nominate Hyslop to be the United States attorney for the Eastern District of Washington.

[5] On June 13, 2019, his nomination was reported out of committee by voice vote.

[10] Hyslop previously served as president of the Washington State Bar Association and Federal Bar Association for the Eastern District of Washington.