Karl G. Sorg, a lawyer who for most of his career was in a solo practice specializing in family law and property, died June 17 at his home in Springfield, Ore. He was 91.

The cause was kidney failure, said his daughter Karen Schlenker.

In the final years before retiring in 1992, Mr. Sorg was a Labor Department lawyer. He moved to Oregon from Arlington County shortly thereafter.

Karl Gery Sorg was born in Reading, Pa. He grew up in Pennsylvania and Arlington and graduated in 1940 from the old Western High School in the District. He attended Dartmouth College until 1942, when he entered the Army during World War II. He was deployed to Cairo with the Office of Strategic Services, a CIA forerunner. He was discharged from the Army in 1946.

Mr. Sorg graduated from Dartmouth with the class of 1944, although some of his course work was completed after that. He graduated from Georgetown University law school in 1949.

He was a founder and member of Arlingtonians for a Better County, an influential political organization in the 1950s and 1960s. He was a former member of St. Mary’s Episcopal Church in Arlington and St. Paul’s Episcopal Church in the District.

His marriages to Ruth Glick and Jan Sullivan ended in divorce.

Survivors include three children from his first marriage, Karen Schlenker of Milaca, Minn., Gery Sorg of Eugene, Ore., and Linda Woodward of Bremerton, Wash.; a son from his second marriage, Nick Sorg of Denver; and six grandchildren.

— Bart Barnes