About Us The Law Offices of John S. Custer, Jr. is a general practice law firm concentrating in the areas of business law, estate planning and administration, taxation, real estate, employment law, and intellectual property.The firm was founded in 1991 by John Custer and is located at 7 St. Albans Circle, Newtown Square, Delaware County, Pennsylvania. This office is located near the intersection of Routes 3 and 252, and can be conveniently accessed from the Blue Route (Route 476) and Routes 1 and 202. Evening hours are available by request.The firm represents business and individual clients irrespective of the size of the transaction, and whether or not the issues involved are straightforward or complex. Firm clients, small or large, can expect close personal service and a prompt response time.