Team Bios
Brown & Roberts is a Service Disabled Veteran-Owned (SDVOB) Environmental Services company that provides technical environmental consulting services. Our primary focus is the assessment, analysis and cleanup of contaminated property.

Sylvester E. Hosey, Owner
Sylvester Hosey, owns and manages business operations for Brown & Roberts, LLC. He is a 100% service connected disabled veteran who for 23 years, successfully developed and managed numerous retail and commercial businesses.  In this capacity, he has formed and maintained relationships with local, state and federal government lawmakers. His work history also includes the position of Chief Accountant at Jackson State University.  Mr. Hosey is a graduate of Xavier University in New Orleans, Louisiana where he received a Bachelor of Science in Business Administration and Jackson State University where he received a Masters in School Administration.

Danielle Solomon Nkojo - Operating Partner

Danielle Solomon Nkojo is one of the founding partners of Brown & Roberts.  Prior to launching Brown & Roberts, Mrs. Nkojo served as the Brownfields Coordinator for the District of Columbia where she developed and implemented a comprehensive program to facilitate the remediation and redevelopment of environmentally contaminated property. Mrs. Nkojo served as Project Manager for all three US Environmental Protection Agency Brownfields Grants awarded to the District of Columbia. In addition to developing a protocol for identifying and cataloguing potential brownfields sites, Mrs. Nkojo also managed Phase I and Phase II environmental site assessments.  With the use of tax increment financing, tax abatement, low interest loans and environmental savings accounts Mrs. Nkojo developed a financing tool kit and financial incentive program for redevelopment of Brownfield sites in coordination with the Office of Tax and Revenue and the Department of Insurance Securities and Banking.
Mrs. Nkojo began her career with the US Environmental Protection Agency as an Assistant Regional Counsel in the Superfund Program where she enforced federal environmental laws including the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA/"Superfund"), and the Emergency Planning and Community Right-To-Know Act (EPCRA).
Mrs. Nkojo received her Juris Doctor from Vermont Law School and a Bachelor of Arts in Economics from Pace University.  She is a Senior Fellow of the Environmental Leadership Program and served on the DC Vermont Law School Alumni Association, Board of Directors from 2001 thru 2003.   Mrs. Nkojo has delivered numerous presentations and lectures on topics ranging from emerging issues in environmental law to careers in sustainability.

Arthur Glazer - Project Manger
Arthur Glazer has over 30 years experience in environmental management programs and has contributed to special initiatives including Brownfields Economic Redevelopment, Environmental Justice, and technology transfer.  Mr. Glazer served as a section chief at the U.S. Environmental Protection Agency (EPA) Office of Solid Waste where he developed program strategies, permit regulations, and guidance documents under the Resource Conservation and Recovery Act (RCRA).  For over 14 years he was a senior program manger and project director at Tetra Tech Environmental Management Inc. and A.T. Kearny Inc.  Mr. Glazer managed contracts with a total value of approximately $100M and assisted EPA and state agencies with permitting, enforcement and compliance, site assessment and corrective action, risk management, closure and post-closure care, and training activities at hundreds of hazardous waste management facilities across the nation.
Mr. Glazer supported EPA’s Technology Innovation Office and assisted communities, federal agencies, tribes, contractors, and other brownfield stakeholders in using innovative technologies to expedite cleanups at brownfields and other sites.  Mr. Glazer assisted EPA in conducting National Brownfields Conferences and supported the National Environmental Justice Advisory Counsel in conducting its national meetings
Mr. Glazer has a Masters in Business Administration and a Bachelor of Science in Civil Engineering, both from Northeastern University.  He is a member of the National Association of Realtors and is a licensed realtor in Maryland, Virginia, and the District of Columbia

Javier Garcia – Senior Engineer
Javier Garcia has over 14 years of experience as an environmental engineer.  He began his career at the Naval Research Center where he was involved in designing new modifications and changes to environmental protection equipment by providing engineering input and supervising support personnel during equipment research and development.  He also wrote scope of work for contracts to perform Electromagnetic Interference (EMI) and Shock and Vibration testing where he oversaw the equipment installation and operation for such testing. 
From the Naval Research Center, Javier moved to Facilities Engineering Command (NAVFAC) where he supervised programming and execution of $51M per year Environmental Restoration Program, Navy (ER,N) and $28M per year Base Realignment And Closure (BRAC) programs of the Southwest Division of NAVFAC.  Javier was also responsible for the Relative Risk Site Evaluation Model (RRSEM) for the US Dept. of the Navy. The model used information regarding contaminants toxicity, migration pathways, and human and ecological receptors that may be affected by exposure to contamination.  2,718 sites in the ER,N program were evaluated to determine each site's relative environmental risk.  Based on the risk ranking and other risk management concerns, remedial work was programmed and budgeted. Management of these model included QA/QC to ensure site validity and contamination accuracy, addition and deletion of sites to and from the database.
In 1998, Javier moved to the Environmental Protection Agency (EPA) where he developed national policies and regulations in the areas of RCRA hazardous waste generation, management, and recycling.  His responsibilities included advice and expertise on hazardous wastes issues to management, other offices, agencies, and other external customers, including the public.  Javier reconciled discrepancies among various parties, including states, EPA regional offices, and industry regarding RCRA interpretation while communicating the Agency’s position.
In 2006, Javier became a LEED AP (Leadership in Energy and Environmental Design - Accredited Professional) and can provide certification of environmental sustainable construction and methodologies on buildings and real estate projects.  Javier is bilingual in Spanish and English (speaking, writing, reading) with working knowledge of Auto Cad.

Tiffany Brown, Esq. - General Counsel
Tiffany H. Brown, President, co-manages the day-to-day operations and business development efforts of Brown & Roberts.  Her experience includes work as a business consultant advising non-profits, small and medium sized business on a variety of organizational and leadership development matters, through a company she co-founded and for which she served as General Counsel, Symphonic Strategies.   Through Symphonic Strategies, she worked  in the areas of organizational and leadership development, strategic planning, best practices research and strategy and innovation, among other things, when providing management consulting services to clients.  She has also worked closely with community development leaders and organizations to help strengthen their capability to serve their constituent communities.  In addition to her work as a business consultant, Ms. Brown is a seasoned litigator.   She has represented Fortune 500 companies in a myriad of matters, and has counsel to a finance committee with oversight of a $9 billion trust in complex products liability matters and defended doctors and hospitals in multi-million dollar complex medical malpractice matters.   Through her work as an attorney, she has learned to quickly identify the attributes that make companies thrive as business entities and those that hold them back from achieving their potential.  She received her bachelor's degree in English Literature from Georgetown University and her juris doctorate from the George Washington University Law School.  While at Georgetown, she studied both spoken and written Japanese and spent a semester of study in Tokyo, Japan.  She is currently licensed to practice law in Virginia, Maryland and Washington, D.C.  As a litigator, Ms. Brown's primary specialty was in the area of corporate litigation.