Olch drafts and argues civil and criminal appeals for individuals and entities in state and federal courts driving leading rulings in diverse areas of law such as the right to counsel, contracts, the privacy rights of hospital patients, and employment discrimination.

Olch often works closely with trial counsel on memoranda of law and is often asked to edit briefs of other attorneys.

His leadership in the appellate world has included serving as the Chair of New York State Bar Association’s Committee on Courts of Appellate Jurisdiction, and on the Executive Committee of the American Bar Association’s Council of Appellate Lawyers. He has frequently lectured on appellate practice to lawyers, authored articles which have directly influenced the development of the law, and every year since 2006 has been selected a Super Lawyer for appeals by his peers. He has been quoted as an authority on legal matters in The New York Times, The Washington Post, and The New York Law Journal.

The New York Court of Appeals cites Olch’s briefs as a “model of organization and clarity.” A video of Olch’s acclaimed oral argument before the New York Court of Appeals in Chanko v. American Broadcasting Co., is taught in Columbia Law School courses on brief writing and appellate practice.