After living in Glen Arm and Monkton, he and his wife, a former Baltimore County librarian, moved in 2001 to Easton.
"He had the opportunity of going to other firms through the years, but he felt a loyalty to the company and his clients," his wife said. "He was going to retire after we moved to Easton, but one morning he was dressed in a suit and said he had to finish up some things at the office. That took another eight years."
In Easton, Mr. Sedlack joined Christ Episcopal Church and did mission work in Mississippi after Hurricane Katrina as well as in Belize and Kenya.
His wife was a founder of the Talbot Interfaith Shelter, and he served on its finance committee. He was also a member of the boards of John S. Connor Inc. shipping company and the Talbot County Historical Society.
For more than 40 years, he enjoyed vacationing and fishing at Bethany Beach, Del., and played tennis and skied until he was well into his 70s. He was a world traveler and had traveled to more than 40 countries with his wife.