The Lehrer Cumming team brings together a wide range of valuable and complementary perspectives, along with a high level of talent and experience, all under one roof. Our leaders’ collective histories in construction, design, corporate ownership, and investment enable them to successfully lead our project teams.

With strong leadership and skilled team members, we are able to meet the needs of each and every client, no matter how complicated their project.

The Lehrer Cumming team is led by Chief Executive Officer Peter M. Lehrer and Chief Operating Officer Gavin A. Middleton, and is supported by a number of senior executives in New York, New Jersey, Boston, Washington, D.C., and Miami.

Peter M. Lehrer

Peter M. Lehrer

Chief Executive Officer

Peter M. Lehrer is an internationally recognized and highly respected leader in managing large scale complex construction projects. Peter founded Lehrer, LLC, a firm which provides construction consulting and project management services to clients engaged in major development projects who rely on experience, tenacity, and the ability to find logical, strategic, and economic solutions to complex problems often not obvious to others.

Peter has chaired several commissions for government focused on reducing costs and improving efficiency for large multi-billion dollar capital programs. In 1979, he co-founded Lehrer McGovern, Inc., a construction management firm that consistently ranked as one of the top largest construction companies in the country. In 1988 the firm was merged into Bovis Ltd., (London) an international construction firm and Peter became Vice Chairman of Bovis, Ltd., and Chief Executive Officer of all U.S. based subsidiary companies. Peter was responsible for managing one of the largest construction management firms in the country with a staff of 2000 professionals and responsible for billions of dollars of work annually. Previous projects include the 1996 Atlanta Olympic Games, Euro Disneyland (Paris), Canary Wharf (London), the restoration of the Statue of Liberty and Ellis Island, Grand Central Station, the rebuilding of Ben Gurion and La Guardia Airports, The Metropolitan Museum of Art, Princeton University, Cornell University, and major healthcare building programs for New York Presbyterian Hospital, St. Luke’s Roosevelt Hospital, plus thousands of highly complex visible projects for both the private and public sectors.

Peter M. Lehrer

Gavin Middleton

Chief Operating Officer

Gavin is a Design and Construction Executive with 25 years of experience throughout North America, the Caribbean, and Europe. He has extensive experience in managing mixed-use projects from inception to final delivery and closeout, with a focus on logistically complex projects with challenged deadlines and schedules. Gavin has been a key stakeholder involved in projects across a wide variety of asset classes; including academic buildings, mid and high-rise office buildings, industrial business parks, and high-rise condominiums. At Lehrer Cumming where he is Executive Vice President, Gavin works closely with clients engaged in significant ground-up developments in New York, South Florida, and the Caribbean.

Gavin Middleton Headshot

Sail Van Nostrand

Senior Vice President

Sail Van Nostrand, Senior Vice President, has been a leader in the construction and project management field for over thirty-five years. He is equally experienced in the construction of new building projects, building upgrades and occupied renovations, and has been personally responsible for dozens of new buildings, millions of square feet of tenant installations, and over a dozen expansion projects of occupied facilities. Sail’s construction expertise, combined with his sensitivity to diverse political and operating environments and his commitment to building consensus within the project team, are key elements in the successful execution of projects of all types and complexities.

Jeff Birembaum Headshot

Jeff Birenbaum

Managing Director, Boston

Jeff serves as Lehrer Cumming’s Managing Director for the Boston office and New England region. A well-respected decision-maker with 23 years of experience on a wide range of project types, Jeff brings a deep reservoir of operations knowledge to lead the delivery of hospitality, residential, mixed-use, education, and commercial projects throughout the region. Having been based in the Boston area for 16 years, Jeff’s intimate knowledge of the region provides him with key insights into a variety of important project factors, such as site selection, the local construction community, and navigating the entitlement process.

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Richard Brown

Vice President, New Jersey

With more than 30 years of industry experience, Richard specializes in large infrastructure and bridge work, major civil projects, and projects requiring clean-up from contaminated soils. Based in Lehrer Cumming’s New Jersey office, Richard’s unique skillset has led to his success in program management, specifically with large-scale projects involving many smaller projects in various phases. Through his considerable experience with public projects, Richard is an expert in understanding and anticipating what this sector entails—from the regulations governing them to their comprehensive bidding requirements.

Susan DiGiacomo Headshot

Susan DiGiacomo

Vice President, New Jersey

Susan, a Vice President in our New Jersey office, has more than 20 years of industry experience, during which time she has proven herself to be a dynamic leader who envisions the whole picture while maintaining sensitivity to the necessary details. She specializes in serving as an owner’s representative and project manager in both the private and public sectors. A key to Susan’s sustained success is her authentic dedication to the vision of each client; through innovative and strategic project management and effective communications, Susan is able to fully represent their interests and deliver the outcome expected.

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Gus Maimis

Executive Vice President, New York

Gus, a New York City-based Executive Vice President at Lehrer Cumming, has more than 35 years of experience leading numerous construction projects in New York. Throughout his career, he has provided management oversight on a variety of complex projects for commercial, aviation, higher education, healthcare, non-profit and public agency clients. Some of the more notable projects include the National September 11 Memorial and Museum, the LaGuardia Airport redevelopment, and multiple assignments at Columbia and New York University. Gus is a visiting professor at the Pratt Institute in Brooklyn.

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David Thurm

Executive Vice President, New York

David brings to Lehrer Cumming’s clients more than 25 years of extensive experience in managing major projects across a variety of building types. An accomplished senior executive, David has broad experience in leading transformative change in complex organizations, and a robust resume of management at large organizations and institutions. David is currently leading the multi-faceted, $1.5 billion Javits Center expansion on behalf of Lehrer Cumming, driving the development of the project, leveraging his past experiences as an owner, and applying his focus on innovation, and budget and schedule controls.

Norbert Young Headshot

Norbert Young, FAIA

Executive Vice President, New York

Norbert is an Executive Vice President at Lehrer Cumming, where he leverages his experience as an architect, developer, and construction project manager. As Executive Vice President, he provides clients with strategic planning, business transformation, and project controls expertise, with a focus on preconstruction and design. He focuses on using all aspects of his strategic project management experience to advise owners in the building process. Norbert has authored several papers about construction trends, and the future in transforming design and construction processes. He is a Fellow of the American Institute of Architects, and a Registered Architect in Pennsylvania and Maine.