103 Terrace Street, Roxbury, MA 02120

Massachusetts Biologics Laboratory

BOSTON, MASSACHUSETTS

Dewitt Center

BOSTON, MASSACHUSETTS

The Clarion Mixed-Use Development

ROXBURY, MASSACHUSETTS

Renaissance Parking Garage

BOSTON, MASSACHUSETTS

Boston Police Headquarters

BOSTON, MASSACHUSETTS

Leadership

The firm was established by the late Donald L. Stull, an African American pioneer in the profession. He was a graduate of the Harvard Graduate School of Design, a member of the distinguished College of Fellows of the American Institute of Architects, and recipient of the Boston Society of Architects 1997 Award of Honor.

Continuing under M. David Lee’s leadership, the firm is committed to distinctive design outcomes and avoiding the direct application of stored solutions, whether found in research or the firm’s past projects. S+L’s obligation to its clients is to offer innovation, creativity, and practicality, and a fresh approach that respects clients’ needs and aspirations.

OUR TEAM

M. David Lee, FAIA, NOMA
President

David Lee is a nationally recognized architect, urban designer, and planner with over four decades of experience leading impactful, community-centered design. His portfolio includes civic, institutional, and residential projects such as The Clarion in Boston, Oakwood Shores in Chicago, and the award-winning Dutch Point master plan in Hartford.

A Fellow of the American Institute of Architects and recipient of NOMA’s Lifetime Achievement Award, David has shaped major public initiatives from post-Katrina recovery in New Orleans to Boston’s air rights vision over the Massachusetts Turnpike.

He has taught at Harvard, MIT, and RISD, and served as president of the Boston Society of Architects. David remains committed to advancing equitable, design-driven solutions across architecture and urban planning.

Thomas J. Maistros, Jr., RA
Senior Project Manager/Urban Designer/ Architect

With over four decades of architectural and urban design leadership, Tom Maistros offers an unparalleled depth of expertise in navigating public approvals, environmental reviews, and complex project delivery. His distinguished career includes serving as a former executive at the Boston Redevelopment Authority and Director of the Boston Civic Design Commission. In these pivotal roles, Tom shaped many of Boston’s most iconic landmarks, guiding them through the intricacies of design and permitting with a rare combination of strategic clarity and technical efficiency.

At S+L, Tom serves as a vital bridge between visionary planning and pragmatic execution. He manages critical schedules, oversees regulatory compliance, and provides high-level advisory for both city and state processes. His versatile background also features significant healthcare planning leadership at Partners HealthCare, where he directed major capital projects for Spaulding Rehabilitation Hospital. Across every sector, Tom is recognized for his ability to balance ambitious design goals with results-driven coordination and real-world feasibility.

Elliot Guerrero, AIA
Project Architect

Elliot Guerrero is a registered architect with over two decades of expertise in architectural design and project management. His extensive portfolio spans multifamily housing, mixed-use developments, and civic facilities, with a track record of leading the design, production, and coordination of numerous projects across Boston and international markets. Throughout his career, he has remained dedicated to delivering high-quality architectural solutions that respond to the unique needs of diverse urban environments.

A graduate of Wentworth Institute of Technology (B.Arch) and Boston University (Master’s in City Planning), Elliot offers a comprehensive perspective on the intersection of architecture and urban policy. From 2017 to 2022, he served as an appointed architect member of the Boston Zoning Commission, where he played a pivotal role in updating the city’s Zoning Code. His leadership in this capacity was defined by a commitment to balancing public benefits and development feasibility with uncompromising design integrity.

Paul H. Paik, AIA Associate
Designer

With over five years of international experience spanning high-end residential, commercial, and urban design across New England and South Korea, Mr. Paik leads the technical development of projects from schematic design through detailed construction documentation. His workflow seamlessly integrates advanced 3D modeling and VR visualization to ensure both technical precision and absolute clarity for all stakeholders. By bridging high level drafting proficiency with hands-on field experience in building inspections, he ensures that complex design concepts are translated into technically sound, constructible architectural solutions.

Beyond design production, Mr. Paik is a key contributor to firm-level business development and strategic project coordination. He plays a primary role in securing high-value contracts through the meticulous preparation of RFQ and RFP submissions. His expertise extends to navigating the municipal permitting process and coordinating with city agencies to drive approvals forward. A proactive communicator, he effectively represents project interests during public community meetings, balancing the needs of developers and local stakeholders to secure successful project entitlements.

Vision, Content, and Detail Grounded in Theory and Creative Invention.

At Stull and Lee we approach each project with the understanding that architecture and urban design require not only creativity, but also practicality, responsibility and organization. We avoid the direct application of stored solutions, whether found via research or in our past work. While the importance of experience must not be denied, its proper role is to inform the creative process of design and not simply to offer a palette of past options from which to choose Equally important to our design approach, is the inclusion of the client throughout the design process. In each project, we strive for design solutions that are uniquely responsive to time and place.