Walter A. Twachtman, Jr. attended the University of Connecticut, where he obtained his BA in 1964 and the University of Connecticut School of Law, where he obtained his LLB in 1967. While in law school he served as Associate Editor of the Law Review and a member of the National Moot Court Team. Walter A. Twachtman, Jr. was admitted to the bar in Connecticut in 1967 while serving as Law Clerk to Associate Justice Howard W. Alcorn of the Connecticut Supreme Court.

Walter A. Twachtman, Jr. is a member of the Planning and Zoning section, Real Property section, Elder Law section, Construction Law section, and Environmental Law section of the Connecticut Bar Association. He is also a member of the Connecticut Trial Lawyers Association, the Hartford County and American Bar Associations. He is a member of the American Society of Law, Medicine and Ethics. Attorney Twachtman is a former member of the Board of Editors of the Connecticut Bar Journal and a past guest lecturer at the University of Connecticut School of Nursing and University of Massachusetts School of Nursing on Medical Legal issues. He was also a member of the faculty at the Second National Interdisciplinary Conference, Justice in Healthcare, Orlando, Florida (1988) and the Third National Interdisciplinary Conference, Justice in Healthcare, Chicago, Illinois (1990).

Walter A. Twachtman, Jr.'s areas of practice include residential and commercial real estate development; land use, zoning, subdivision, inland wetlands and other governmental agency proceedings; all aspects of appellate procedure and practice before the Appellate and Connecticut Supreme Courts; formation, organization and management of all types of business entities and arrangements.