Nationwide Individual and Private Disability Insurance Policy Issues Disability insurance policies are confusing and can easily mislead you. Philadelphia group disability lawyers at EdEdelstein Martin & Nelson - Disability Lawyers Philadelphia, represent clients with group and individual disability insurance policy issues. By focusing our practice exclusively on this important area, we have become trusted leaders in disability insurance law. We will analyze your policy and advise you on your options. We serve clients in Philadelphia?s Tri-State area, throughout the state of Pennsylvania and across the United States.