OUR TEAM

REGulatory director

Justin Bellow

EDUCATION
B.S. in Urban Planning, Arizona State University

Justin is a co-founder and Regulatory/Permits Director for InterAgency.  Justin served for 2-years in the Mayor’s Office during the Fenty Administration, followed by 2-years at the Office of Zoning, where he performed drawing review and code analysis. Subsequently, Justin served for 2-years as Director for DCRA’s Permit Center, where he managed a team of 30 review technicians, overseeing the permitting of DC’s most complex and vital building projects. Justin’s relationship with both DCRA directors and permit staff are a key driver in InterAgency’s ability to secure agreements and approvals with the District. Justin understands the development process comprehensively, and guides clients seamlessly through PUD processes, subdivisions and consolidations, Inclusionary Zoning, and By-Right development. Justin’s facility with District regulations is complimented by his personal relationships with District regulators. When large development is proposed in the District, Justin Bellow is the preeminent facilitator of agreements between various AHJs.

Planning director

Justin Donnelly, LEED

EDUCATION
Master of Architecture, University of Maryland
B.A. in City Planning, Stanford University

Justin is co-founder and Planning Director for InterAgency, where he leads the firm’s water/sewer, road/bridge, and bus/rail projects. Over a 20+ year career, Justin has led architectural design, environmental, and permit processes for the region’s largest infrastructure developments, including AlexRenew’s new $40M CSO Pumping Station, DC Water’s $2.7B Clean Rivers CSO Tunnel Program, Property Group’s $1B I-395 Air Rights Project, CSX’s $500M Virginia Avenue Tunnel, and a host of projects for WMATA and the National Parks Service. Justin has performed the design work for several industrial water processing facilities, written Environmental Assessments, managed extensive Section 106 and Clean Water Act permitting processes, authored MOUs with DDOT, DOEE, DMPED, and DGS, and coordinated the easements/entitlements for a host of linear infrastructure projects in DC, Maryland, and Virginia.

Architecture director

John Li, AIA, LEED

EDUCATION
Master of Architecture, University of Pennsylvania
B.S. in Architecture, University of Maryland

John is a co-founder and Architecture Director for InterAgency. He is a registered architect in Maryland and DC, with more than a decade of experience supporting Government and commercial clients in the Metro Area in the capacity of Lead Architect and Project Manager. John has led diverse projects for Federal agency clients, including the General Services Administration, National Institutes of Health, and National Park Service. His areas of expertise are wide-ranging, and include program of requirements and planning studies, feasibility studies, fast-track design build projects, and work in both historic and occupied buildings. He is well-versed in the Section 106, NCPC, and CFA review processes, and extremely familiar with GSA’s PBS P-100 standards. John currently supports Alexandria Renew Enterprises, where he serves as project architect for the RiverRenew $600M RiverRenew Tunnel System and the fit out of the Environmental Center.

Environmental Director

Doug Chapin, CFM, LEED

EDUCATION
M.S. in Natural Resources, Virginia Tech
B.A. in Environmental Sciences, University of Virginia

Doug manages InterAgency’s environmental practice.  He brings 20+ years of natural and cultural resources consulting to bear on major land use development, planning, and wetland/stream mitigation projects. Doug currently serves as Owner’s Advisor to Alexandria Renew Enterprises, managing the environmental and regulatory coordination for the $600M RiverRenew CSO Tunnel Program. In this role, Doug oversees the program’s NEPA compliance process, USACE and VDEQ Clean Water Act permitting, VDOT/FHWA coordination, and the City of Alexandria’s Development Special Use Permit (DSUP) process.  Concurrently, Doug serves as the Environmental Manager for the NPS National Capital Seawall project to rehabilitate and repair the seawalls within the Tidal Basin and along West Potomac Park.  In this role, Doug oversees the program’s regulatory compliance process including NEPA, §106, §7 and permitting.  Doug is particularly strong in Virginia, where he has negotiated easements, entitlements, and approvals with various municipalities and AHJs, including VDOT, VDEQ, and Dominion Power.  Prior to joining InterAgency, Doug worked for 13 years at Wetland Studies and Solutions Inc., where he was Principal in charge of Clean Water Act (§404/§401) permitting.

Commercial permitting director

Monling Lee

EDUCATION
Master of Architecture, Washington U in St. Louis
B.S. in Architecture, University of Maryland

Monling has 14-years experience in architectural design, urban design, interior architecture, and permit consulting in the D.C. metro area. At InterAgency, Monling brings her architectural expertise to bear, providing peer reviews of architectural permit submissions associated with large-scale development projects for clients like MRP, Foulger-Pratt, and Akridge. Monling is a detail-oriented manager who brings a sure-hand to cost-estimating and permit scheduling activities. Prior to joining InterAgency, Monling Lee was a project manager at Hunt Laudi Studio, where she led the efforts of multiple critically acclaimed design projects including Dupont Underground, Legacy Memorial Park, and the winning entry for the Washington Memorial Grounds Competition.

Civil Infrastructure director

Khara James, RA

EDUCATION
Master of Architecture, University of Maryland
B.S. in Architecture, University of Maryland

Khara has 13-years experience in architectural design, urban design, and permit consulting in the D.C. metro area. Khara is a licensed architect in Washington D.C. and has worked at a variety of building scales. She was previously a project architect and associate at Perkins Eastman Architects specializing in K-12 school projects. Upon joining InterAgency, Khara focused on linear infrastructure programs, typically in the transportation space. Khara leads InterAgency’s work on VPRA’s Long Bridge Project, Amtrak’s Ivy City Project, and WMATA Bladensburg and Northern Bus Garages. Khara is also a pre-construction consultant on some of InterAgency’s largest mixed-use and affordable housing developments in Washington, DC, including JBG’s Union Market development and EYA’s McMillan development. Prior to joining InterAgency, Khara served as an assistant professor of architecture at Montgomery College. Her passion for sustainable placemaking has served as the foundation for her work throughout her career.

Resilience & NATURAL RESOURCES DIRECTOR

Jonathan Randall

EDUCATION
Masters of Science in Ecology, UC Davis
B.A. in Environmental Science, Saint Mary’s


Jonathan is the Resilience and Natural Resources Director for InterAgency, with more than 20 years of experience leading environmental compliance, permitting, and planning for complex transportation, water, and energy infrastructure projects in the U.S. and internationally. His expertise includes environmental due diligence, NEPA documentation, impact assessments, biological and cultural resource studies, wetland delineation, and climate resilience. He has held senior roles at DAI Global, Millennium Challenge Corporation, World Wildlife Fund, and AECOM, leading multidisciplinary teams and managing large-scale environmental compliance, disaster risk reduction, and climate adaptation programs. Jonathan has supported federal agencies including FEMA, USACE, and NPS, guiding projects through complex regulatory processes. His representative work includes wastewater improvements in the Florida Keys, Ellis Island seawall rehabilitation, Colonial Parkway roadway and drainage improvements, and wetland delineation for Washington Dulles International Airport. His experience spans multiple U.S. states and international assignments with organizations such as the United Nations, World Bank, and USAID. He brings a practical, results-oriented approach to delivering resilient, compliant infrastructure and natural resource solutions.

SENIOR Architect

Andrea L. Shaw, RA, NCARB

EDUCATION
Bachelor of Architecture, Rensselaer Polytechnic Institute
B.S. in Building Science, Rensselaer Polytechnic Institute


Andrea brings more than 25 years of experience as a Project Architect and Project Manager, leading a wide range of institutional, educational, commercial, and residential projects. Her academic foundation in architecture and building science complements her technical expertise and client-centered approach. Andrea is highly skilled in managing all phases of design and construction—from feasibility and programming through documentation and construction administration. At InterAgency, she has served as Senior Architect for AlexRenew’s Environmental Center fit-out and currently acts as Owner Advisor for the architecture of the Pumping Station Superstructure. Andrea is a licensed architect in Virginia.

Senior architect

Emilie M. Rottman, AIA

EDUCATION
Master of Architecture, University of Maryland
Master of Real Estate Development, UMD
B.S. in Architecture, University of Cincinnati

Emilie brings more than fifteen years of architectural experience to her role as Senior Architect at InterAgency, where she leads the design and construction of civic and commercial projects. With advanced training in both architecture and real estate development, she bridges design intent with practical execution to deliver thoughtful, enduring work. A registered architect in Maryland, Virginia, and Washington, D.C., Emilie has led projects across adaptive reuse, urban infill, and community-oriented developments throughout the region. She is recognized for her leadership through all phases of design and construction, her ability to navigate complex approval processes, and her commitment to creating spaces that strengthen community connection.

senior architect

Nicole Ng, RA

EDUCATION
Master of Architecture, University of Maryland
B.S. in Architecture, University of Maryland


Nicole brings twelve years of professional experience in architecture and urban design across the Mid-Atlantic, New England, and Pacific Coast regions. Her academic foundation in architecture from the University of Maryland has provided her with a strong balance of design theory and technical expertise. A licensed architect in the District of Columbia, Nicole has contributed to a broad range of practice areas, including urban and civic design, campus planning, K–12 education, healthcare, senior living, mixed-use, and residential architecture. At InterAgency, she serves as Project Architect, facilitating architectural feasibility and design to ensure each project achieves its functional, aesthetic, and community objectives

Project Manager

Daniel Williams

Daniel serves as a Project Manager at InterAgency, bringing over 14 years of professional experience facilitating and managing the commercial construction process throughout jurisdictions in Maryland, Virginia, and Washington, D.C.  Daniel has a proven track record helping companies navigate the complex permitting and regulatory processes from start to finish, specializing in project types ranging from retail office spaces to high-rises.  He has worked with both small businesses and large developers including JBG Smith, Carr Properties, Greystar, and McCaffrey Interests, providing expert advice on permitting requirements and development strategy.  Daniel is committed to delivering clients with unparalleled communication and service in order to bridge the gap between regulations and industry, completing projects timely and efficiently. 

project manager

Nate Akey

EDUCATION
B.S. in Nursing, Lipscomb University



Nate brings over 15 years of multifaceted professional experience to InterAgency, building on a foundation in healthcare with a Bachelor of Science in Nursing from Lipscomb University. His career includes work in commercial construction, small business ownership, residential general contracting, and healthcare. These experiences have strengthened his consulting approach by combining technical expertise, regulatory awareness, and practical field insight to deliver coordinated, well-informed solutions. Since joining InterAgency, Nate has successfully managed and supported a wide range of commercial, residential, office, and educational projects for clients including GCS-Sigal, DC United, Kiewit, The George Washington University, and the D.C. Department of General Services. As a member of the Civil Infrastructure Team, he contributes to several high-profile initiatives such as VPRA’s Long Bridge Project, Amtrak’s Ivy City Project, WMATA’s Switchgear Replacement Project, and DC Water’s Sewer Program Management Team.

Project Manager

Coman Ilahi

Since joining InterAgency, Coman has managed a range of project types including commercial retail and office spaces, multifamily residential developments, and municipal infrastructure projects. He has extensive experience navigating complex regulatory compliance processes and demonstrates expertise in managing all phases of a project’s development lifecycle. An outdoor enthusiast and endurance cyclist, Coman is also passionate about sustainable, community-focused design and currently supports infrastructure initiatives with WMATA and DC Water

PROJECT COORDINATOR

Daniel Kim, PMP

EDUCATION
B.S. in Biology, Pennsylvania State University

Daniel brings project management expertise and operational precision to his role as Permitting Operations Project Manager at InterAgency. He applies an analytical and systems-based perspective to streamline permitting processes and deliver transparent outcomes that advance the District’s Lead-Free initiatives. Daniel serves as the primary point of contact for DC Water’s Lead Replacement Assistance Program (LPRAP) and Voluntary Lead Replacement Program (VLRP), supporting the District’s goal of replacing all lead service lines by 2030. e manages scheduling, permit coordination, and end-to-end submissions with a focus on accuracy and efficiency under demanding timelines. As a key liaison among DDOT, DC Water, contractors, and internal teams, Daniel ensures communication remains clear and projects move forward seamlessly. His experience includes managing fast-paced permitting workflows, supporting contractors and homeowners through the LPRAP program, and expanding operational capacity within the VLRP to sustain increased project volume and timely permit delivery

PROJECT COORDINATOR

Soumia Chetouane

EDUCATION
B.S. in Community Health, George Mason University

Soumia manages regulatory permitting efforts for DC Water’s Lead Free DC initiative, overseeing permit submissions to DDOT, DOEE, DOB, and DC Water. She plays a key role in advancing DC Water’s Lead-Free DC initiative—an environmental justice program—by managing all related permit submissions to DOEE and DDOT. Acting as a liaison between DC Water, regulatory agencies, and private property owners, Soumia ensures that permit approvals are secured efficiently, preventing delays to critical construction projects. She also contributes to community outreach efforts in support of this landmark public health initiative. Outside of work, Soumia is expanding her technical skills through certification programs in Microsoft Access and Power BI.

Permit COORDINATOR

Mandy Leung

EDUCATION
M.S. Psychology, ChengKung University, Taiwan
B.S. in Psychology, ChengKung University, Taiwan

Mandy has 4-years of experience facilitating construction management, utility coordination, and permit expediting in the D.C. Metro Area.  Over the course of her tenure with InterAgency, Mandy has worked on a variety of building project types, ranging from commercial retail to office space and multifamily residential. Mandy has experience navigating regulatory compliance protocols in numerous jurisdictions such as in DC, Montgomery, Arlington, and Fairfax County.  She currently manages InterAgency’s commercial projects for tenant layouts and interior alterations.

Permit compliance specialist

Markos Dereje

EDUCATION
M.S. in Civil Engineering
B.S. in Civil Engineering

Markos is a Permit Compliance Specialist at InterAgency, bringing over 15 years of experience in civil infrastructure design, construction management, and regulatory coordination throughout the Washington, D.C. metropolitan area. At InterAgency, Markos leads permit compliance reviews and works closely with contractors and DC Water to resolve permitting issues efficiently. He is highly skilled in managing complex permitting processes for transportation and water infrastructure programs, coordinating with agencies such as DDOT, DOEE, DC Water, WMATA, FAA, and NPS to ensure full compliance with public space, environmental, and airspace regulations. Markos also develops Traffic Control Plans (TCPs), reviews erosion and sediment control plans, and evaluates civil design packages to ensure regulatory accuracy and safety standards are met. His strong technical background and experience in field inspection, engineering design, and environmental compliance enable him to effectively bridge communication among contractors, consultants, and public agencies, helping projects maintain schedule integrity and regulatory alignment

Environmental Scientist

Sarah Masters

EDUCATION
B.S. in Environmental Science, Virginia Tech

Sarah brings a broad background in environmental science, policy, and wetland science to her role at InterAgency. She graduated from Virginia Tech with a bachelor’s degree in environmental science, with dual minors in biological sciences and wetland science. Sarah supports tree inventories and wetland delineations, assists with NEPA compliance, and manages environmental permitting efforts, including Clean Water Act (§404/§401) permits, NPS Special Use Permits, and local right-of-way permits.   Sarah contributes to major infrastructure projects in the DC Metro Area, including VPRA’s Long Bridge Project, RiverRenew Tunnel System, Potomac Interceptor Rehabilitation and the City of Alexandria’s Waterfront Implementation Project. Prior to her start in InterAgency, Sarah researched freshwater stream health and ecology as well as completed an internship with the Endangered Species Coalition as a policy intern.

HR & Operations manager

Maryanne Valleau, MBA

EDUCATION
M.B.A. in Project Management, Capella University
B.A. in Psychology, Stockton University

Maryanne brings over two decades of senior leadership experience in Human Resources, operations, and organizational development. Since joining InterAgency in 2023, she has served as HR Manager and Business Partner, providing strategic leadership in compliance, talent management, and workforce planning. With an MBA in Project Management earned in May 2025, Maryanne integrates business strategy with HR initiatives to strengthen company performance and support long-term growth. She leads efforts to enhance employee engagement, develop scalable infrastructure, and align people strategy with business objectives. A member of the Society for Human Resource Management and the D.C. SHRM chapter, Maryanne is recognized for her ability to translate organizational vision into actionable results.