Marc A. Rollo

Marc is the Chair of Archer’s Environmental Law Practice and will become the firm’s President on January 1, 2026. Well-respected in the environmental legal community nationwide, he takes pride in solving complex environmental problems and disputes for clients using litigation and non-litigation skills, as well as opportunities to bridge gaps between parties. A ‘dot-connector’ and consensus builder, Marc is sought after for his ability to settle and resolve complex environmental litigation matters, toxic tort and product liability defense, and handling of NRD remediation and restoration projects under CERCLA.

A significant portion of Marc’s practice is focused on complex matters involving contamination from downstream petroleum operations, where he regularly serves as lead counsel for petrochemical companies involving state-agency cost-recovery claims, surface water claims, and natural resource damage claims. Clients benefit from his years of experience with complex, multi-district and multi-party litigation involving allegations of property damage, cleanup reimbursement, natural resource damages and personal injury. He also has significant experience negotiating settlement agreements with the NJDEP, and regularly handles the preparation of nexus packages. Marc frequently leads a team of technical experts, including the firm’s consulting hydrogeologist. At the request of his clients, Marc will provide assistance on a national level to companies throughout the country involving environmental disputes and challenges.

A known problem-solver with state and federal agencies and private party disputes, Marc recognizes opportunities where regulatory issues and litigation intersect, and where his strong allocation advocacy skills are often needed. Clients appreciate Marc’s approach. Detail-oriented and a master of the facts, he analyzes all aspects of a matter to reveal the key legal issues, providing his clients the information they need to understand clearly the various available paths forward, and with his help, to choose the best one based on their particular goals and needs. He often provides support to a company’s in-house counsel, and when needed serves in a mediator role.

An important aspect to Marc’s practice is serving as a trusted advisor to his clients. He excels at working collaboratively and efficiently, and in translating complex technical and legal issues into understandable terms. Marc values learning about his clients’ operations and businesses and draws on his experience across many industries to help clients improve overall compliance, develop necessary corrective steps, build strong legal and technical cases to minimize liability, and achieve business goals.