Fernando Oberlin Rodriguez, 70, an Alexandria lawyer, died Monday after a heart attack at his home in Lorton.

Born in El Paso, Mr. Rodriguez attended public schools in Los Angeles. After spending several years as an actor, Mr. Rodriquez came to Baltimore in 1936 and took a job as a clerk at the Social Security office there.

After the outbreak of World War II, Mr. Rodriguez began working for the Office of Strategic Services. In 1946, he graduated magna cum laude from National Law School, now part of George Washington University, where he had attended night classes while working for the Social Security office and the OSS. He subsequently started his own practice in Washington.

After the outbreak of the Korean conflict, Mr. Rodriguez began t 10-year career working for the Navy Department in its bureau of ships contract division. After leaving the Navy Department, he worked as a contract attorney for the Westinghouse corporation for 12 years.

He is survived by his wife, Josephine, of the home in Lorton; two daughters, Maclovia of Chicago, and Roberta Pommet of Woodbridge, Va., a brother, Frank of Los Angeles; four sisters, Josephine Stevens, Elizabeth Hubbard, and Kathleen Sorenson, all of Huntington Beach, Calif., and Connie Mumford of Newport Beach, Calif., and three grandchildren.