Quickly Exit Site

Nathaniel M. Fields

As Chief Executive Officer of Urban Resource Institute (URI), Nathaniel Fields is responsible for leading the organization’s long-and short-term strategy and the implementation of its vision and mission.


Informed by two decades of practical work and achievement in social and human services, Nathaniel has spearheaded the transformation of URI in size, scope and services for vulnerable populations in New York City, particularly victims of domestic violence. Since taking the helm of the organization in 2012, he has transformed it into a dynamic, multi-service agency, nearly tripling the budget and building it into the largest provider of domestic violence shelter services in the country.


Under his leadership, Nathaniel has focused on innovation, exemplified by his advancement of groundbreaking programs focused on prevention as well as services, such as People and Animals Living Safely (PALS), Legal Education Advocacy Program (LEAP), Working Internship Network (WIN), Abusive Partner Intervention Program (APIP), and Relationship Abuse Prevention Program (RAPP) targeting youth and teens. To further his vision, Nathaniel is committed to a Culture of Excellence and an environment with data-driven, measurable outcomes.


Nathaniel serves in leadership roles for numerous organizations and councils, including: the Board of the Human Services Council; NYC Deputy Mayor for Health & Human Services 2020 Nonprofits and Social Services Advisory Council on “reopening” New York City;  the special COVID-19 domestic violence task force of the New York State Council on Women and Girls; the COVID-19 Response Work Group of the New York City Office to End Domestic and Gender-Based Violence (ENDGBV); the Fatality Review Committee of the New York State Office for the Prevention of Domestic Violence; and the New York City Mayor’s Nonprofits and Social Services Advisory Council.  He has led the New York City Coalition of Domestic Violence Residential Providers as co-chair for over ten years, and in 2019 was named to the New York City and State “Nonprofit Power 100” list.


He holds a bachelor’s degree in history with a focus on black and Hispanic studies and a Master of Social Work degree from Fordham University, and completed an executive leadership and certificate program in the not-for-profit sector at New York University. Born and raised in New York, Nathaniel has firsthand knowledge of the challenges affecting New York’s most vulnerable communities, as well as the positive work being done to effect structural changes. Working directly with marginalized groups, Nathaniel has seen that when investments are made in communities, they can thrive. At URI, Nathaniel enjoys being part of a community of people committed to improving the lives of others. When asked to identify his vision for URI, he states, “Hope is at the cornerstone of everything we do.”

Phyllis Arnold

Phyllis Arnold is the General Counsel of Urban Resource Institute and has practiced law for more than 30 years. She previously served as Deputy Commissioner and General Counsel for the NYC Department of Buildings. Additionally, she taught at St. John’s and NYU Schools of Law. She has also been a litigator for the City and State of New York and has worked in the private and non-profit sectors. She holds a J.D. from the Columbia University School of Law.

Lisa Aguilera del Puerto

Lisa Aguilera del Puerto is an attorney with almost 20 years’ experience as a New York City real estate attorney. She represented clients from around the world and often conducted closings in Spanish. Her diverse background includes working at government agencies and in media, and as general counsel for an international management consulting firm, establishing corporate policy for the company, drafting and negotiating multi-national consulting, intellectual property and employment agreements. Most recently she was a vice president at Morgan Stanley in the Global Market Risk Management Department, charged with ensuring that the department’s risk governance and oversight were compliant with regulatory guidelines and best practices. In addition to her work at URI, Lisa is on the board of a local nonprofit and an NGO in Rwanda. She is a graduate of Smith College and earned her Juris Doctor from Hofstra University School of Law. Lisa lives in Brooklyn, NY with her family and spends her free time skiing in the winter, going to the theater, reading, and traveling.

Marsha R. Bonner

Marsha Bonner is the Vice President of People and Culture at Urban Resource Institute. Marsha is a diversity and inclusion advocate and change agent with over 15 years of experience across all areas of human resources within for-profit and nonprofit organizations. Passionate about driving improvement efforts through the design and implementation of innovative programs, processes, policies, and procedures, Marsha is recognized for her strategic approach to transform organizational culture, maximize recruitment productivity, and boost staff performance and retention, producing operational cost-savings and advancing diversity and inclusion efforts. She previously held positions in human resources at The New York Times, New Jersey Performing Arts Center, VillageCare, and the American Institute of Certified Public Accountants.


Marsha holds a Master’s degree in Organizational Change Management from The New School and a Bachelor’s degree in Corporate Communications from Baruch College. She also holds a professional certification from the Society of Human Resources Management.

Charles Carroll

Charles Carroll joined Urban Resource Institute in 2017 as the Vice President of Operations. In 2020 he was promoted to Senior Vice President, Asset Management. He is responsible for ensuring the smooth operation of all Urban Resource Institute’s 27 properties throughout the New York City. Mr. Carroll negotiates and administers lease agreements and manages capital projects for the construction and renovation of office space and transitional housing facilities. Prior to joining URI, he served people living with HIV/AIDS for 22 years, including eight years at Harlem United where he held multiple positions beginning as Associate Vice President for Adult Day Healthcare programs, eventually advancing to the role of Chief Operating Officer. He holds a Bachelor Science degree from Saint Thomas Aquinas College.