Leo Friend, 67, who owned an operated a liquor store in Washington for 25 years and then became a VISTA volunteer, died Sunday at St. Michael's Hospital in Toronto, Ontario, following a heart attack. He was vacationing there at the time.

Mr. Friend was born in New York City. He came to the Washington area in 1936 and went to work for the Post Office at Fort Belvoir. He attended night classes at George Washington University and earned bachelor's and law degrees there in 1940.

In 1945, he resigned from the Post Office and purchased Luber's Liquors at 929 New Jersey Ave. SE. He sold the business in 1970.

Mr. Friend then became a Vista volunteer and worked in Pittsburgh and Washington. While in Pittsburgh, he earned a master's degree in psychology from the University of Pittsburgh. He remained active in VISTA, where much of his work was among tenants and the elderly, until his death.

Survivors include his wife, Dale, of the home in Arlington; two sons, Ronnie, of Silver Spring, and Bruce, of Berkely, Calif.; two sisters, Beatrice Hurowitz of Silver Spring, and Libby Stryker of Long Island, N.Y., and four grandchildren.

The family suggests that expressions of sympathy be in the form of contributions to a charity of one's choice.