In 1809 he settled at Menokin plantation on Virginia's Northern Neck, which his grandfather had built for another daughter in Westmoreland County, where he remained nine years.
[2] In 1818, Lomax returned to Fredericksburg and in 1826 moved to Charlottesville after accepting appointment as professor of the University of Virginia School of Law.
The convention that framed this constitution had adopted a clause disqualifying any person over seventy years of age from holding the office of judge; but at the request of members of the bar this provision was cancelled so as not to exclude Lomax.
Lomax wrote Digest of the Laws respecting Real Property generally Adopted and in Use in the United States (3 vols., Philadelphia, 1839; 2nd edition, revised and enlarged, Richmond, 1856) and a Treatise on the Law of Executors and Administrators generally in Use in the United States (2 vols., 1841; 2nd ed., Richmond, 1856).
[3] Lomax married Charlotte Belson Thornton (1784–1793) of Northumberland County, descended from the First Families of Virginia, who survived him by about a year.