Michael L. Nisengard

Kevin Burke is a business attorney focused on the litigation of contract disputes, labor and employment issues, intellectual property protection, and trade secret cases. Kevin has represented both individuals and businesses since he moved home from Washington, D.C. in 1999, where he graduated with honors from Georgetown University and George Washington University Law School. He has tried dozens of major commercial and employment cases to verdict. He regularly handles appeals before the Appell...

Howard B. Cohen is focused on the prosecution and trial of substantial personal injury accident claims, which include automobile accidents, workplace accidents, wrongful death claims, construction accident and fall-down defect claims. He has also prosecuted substantial Insurance, Securities and Fraud claims.

James W. Grable, Jr. is a top attorney recognized by Best Lawyers in the practice area(s) of Criminal Defense: General Practice and Personal Injury Litigation - Plaintiffs. James W., who practices law in Buffalo, New York, has been recognized since 2011. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which James W. is held by other top lawyers in the same geographic and legal practice area.

Diane M. Perri Roberts is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation and Corporate Law. Diane M., who practices law in Buffalo, New York, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Diane M. is held by other top lawyers in the same geographic and legal practice area.

Michael J. Roach is a top attorney recognized by Best Lawyers in the practice area(s) of Medical Malpractice Law - Defendants. Michael J., who practices law in Buffalo, New York, has been recognized since 2012. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Michael J. is held by other top lawyers in the same geographic and legal practice area.

George E. Riedel, Jr. practices in the areas of trusts and estates, elder law, estate administration, estate planning, guardianships, and adoptions. Mr. Riedel is a director (from 1995 to present) and past secretary for the 100 Club of Buffalo. He is also a director (from 1999 to present) of the Western New York-Jamaica Partners of Americas. He was elected a fellow of the New York Bar Foundation in January 2001. He also serves on the advisory board of the Franciscan Missionary Sisters of the ...

John K. Rottaris concentrates his practice in the areas of commercial and business litigation, creditors’ rights, commercial collections, landlord-tenant law, bankruptcy law and tax certiorari. He also represents manufacturers and manufacturers’ sales representatives in commission and contract disputes. John has represented clients in all phases of trial and appellate practice before local, state and federal courts, as well as alternative dispute resolution forums. He has extensiv...

Jeff joined this firm in 1993 and became a partner in 1994. He is a lifelong resident of the Olean area and an Olean High School Graduate. Mr. Black obtained his Bachelor of Science Degree from St. Bonaventure University in 1990 and graduated cum laude from The Dickinson School of Law (Penn State) in 1993. While in law school he was a member of the Dickinson Law Review and his case note was published. He was also a member of the Woolsack Honor Society. Upon graduation from law school, Mr. Bla...

John A. Collins practices in the areas of Civil Appellate and Motion Practice. He has argued appeals before the New York Court of Appeals, all four Departments of the Appellate Division of the New York State Supreme Court, and the United States Court of Appeals for the Second and Third Circuits. Speaking Engagements Prepared course materials and lectured on Article 78 Proceedings and Appeals From Administrative Determinations for the New York State Bar Association as part of its New York Appe...

David H. Alexander practices law in New York and Florida, and serves as a foreign legal consultant in Ontario, Canada. His areas of practice include wills, estates and trusts, estate planning and administration, business counseling, corporate law and taxation. He represents Canadian and other foreign corporations in the establishment of United States subsidiaries and in their conduct of business in the United States. He also represents Canadian and other foreign persons who purchase assets in...