Bullis Trustees 2019-20

Chair: Patrick Caulfield

Elected to Board: 2012

Occupation: Co-owner and officer in charge of operations, human resource management and financial activities of Coakley & Williams Construction, Inc.

School Affiliation: children Owen ’14 and Fiona ’20

Professional Background: Joined Coakley & Williams in 1977 and has been responsible for the day-to-day operation of the company since 1984. He has overseen the construction and renovation of hundreds of commercial, government and institutional projects throughout the U.S. and overseas, including many award winners recognized by leading national and regional industry organizations. Also serves as chairman of the board for Big Brothers Big Sisters of the National Capital Area and is on the board of advisors for the Universities at Shady Grove.

Vice Chair: Adam Greenberg

Adam Greenberg

Elected to Board: 2009

Occupation: President and founder of Restaurant Zone, Inc.

School Affiliation: children Amanda ’14, Kyle ’16 and Blake ’19

Professional Background: A lifelong Marylander, is the president and founder of Restaurant Zone, Inc., the company that manages Potomac Village Deli Catering, as well as four Potomac Pizza restaurants located in Potomac, Chevy Chase, Rockville and Gaithersburg. In his previous life he started and ran the Cone Zone ice cream parlors.

Hillary D. Baltimore

Elected to Board: June 2015

Occupation: Former consultant to the Department of Defense’s Military Housing Privatization program, and consultant for Ernst & Young in their Public/Private Real Estate Consulting Group

School Affiliation: children Thomas ’18 and Hannah ’21

Professional Background: Ms. Baltimore currently volunteers with and supports a variety of organizations that are focused on providing support and opportunities to underserved segments of the population. She has served on several independent school boards and held leadership positions at several not-for-profit organizations. Her primary work has revolved around fundraising, outreach and marketing, and program development. Ms. Baltimore recently served as the president of the Washington Tennis and Education Foundation and continues to be an active member of the board. She is also chairman of the nominating committee for the Wolf Trap Foundation of the Performing Arts and will serve as co-chair for their upcoming Gala this fall.

Brett Bernstein

Elected to Board: 2019

Occupation: CEO & Co-founder XML Financial Group

School Affiliation: children Sloane ‘21 and Summer ‘24, attended Bullis 1986-1990 for grades 5 through 8

Professional Background: Brett Bernstein is the CEO and Co-founder of XML Financial Group. Brett is an active financial advisor assisting clients with his holistic approach to goal setting and problem-solving. Prior to co-founding XML in 2004, he was a Vice President and Senior Financial Advisor at Merrill Lynch. Brett is a serial entrepreneur actively investing in many start-up companies and leading his firm to acquire local wealth management firms. 

Brett shares this entrepreneurial expertise generously with Bullis and the University of Maryland. He serves as an advisor and subject-matter expert at Maryland’s Robert H. Smith School of Business Dingman Center for Entrepreneurship. At Bullis, Brett supports the Entrepreneurship Signature Program, sponsoring the Capstone Entrepreneurial Shark Tank competition and sharing his experience and enthusiasm for entrepreneurship with the Capstone students and mentors.

Brett serves as Board Chair of So What Else, a local, grass-roots charity helping at-risk youth with after school and summer programs, where he has led the Board since 2010. He received a BS in finance from the University of Maryland’s Robert H. Smith School of Business and continued his education at Georgetown University and Harvard Business School’s Executive Leadership Program.

Livia Christensen

Elected to Board: 2017

School Affiliation: child Julian ’22

Professional Background: Born and raised in Germany, Ms. Christensen holds a German law degree from the Ludwig-Maximilians University in Munich. Prior to having a family, she worked in the cross-border leasing division of Siemens Financial Services in Munich, and in the Automotive Mergers and Acquisitions division of Citibank in London. 

Livia has volunteered in schools ever since her son started at the Manor Montessori School where she helped with various school events. At Bullis she has served as PA Lower School coordinator, the PA vice president, the Gala database coordinator, the PA president, a member of the Head Search Committee, and now a Board member.

Raj De

Elected to Board: 2019

Occupation: Partner in Mayer Brown's Washington DC office and leads the firm's global Cybersecurity & Data Privacy practice. He also co-leads the firm’s National Security practice group and is a member of the firm’s Congressional Investigations & Crisis Management team. 

School Affiliation: child Bodhan ’25

Professional Background: After nearly two decades in private practice and

public service across all three branches of the United States government, Raj is one of the most trusted voices in Washington. He has held senior appointments in the White House, the Department of Justice, and the Department of Defense. Raj returned to Mayer Brown in 2015 after serving as General Counsel at the United States National Security Agency.

Prior to his service at the NSA, Raj served in the White House as Staff Secretary and Deputy Assistant to the President of the United States. In that capacity, he was responsible for managing all written material provided to the President. Prior to his White House role, Raj served as Principal Deputy Assistant Attorney General in the Office of Legal Policy at the Department of Justice. Raj started his career at DOJ, where he was a trial lawyer in the Antitrust Division under the Attorney General’s Honors Program.

Today, Raj serves in various roles that build upon his Washington legal and policy experience. He graduated magna cum laude from both Harvard Law School and Harvard College.

Gary Friedlander, M.D. ’79

Gary Friedlander

Elected to Board: 2009

Occupation: Private practitioner, Urological Consultants

School Affiliation: Alumnus, Class of 1979; children Marni ’11, Melanie ’14 and Michael ’19

Professional Background: Chairman, Department of Urology, Shady Grove Adventist Hospital; Formerly served on the Bullis Alumni Board

Jonathan Halle ’88

Jon Halle

Elected to Board: 2012

Occupation: Architect and real estate developer

School Affiliation: Alumnus Class of 1988; children Lauren ’15, Benjamin ’17 and Matthew ’26.

Professional Background: Master’s in architecture from Tulane University; master’s in real estate from Johns Hopkins University.

Claudia Helmig ’88


Elected to Board: 2013

Occupation: Developed Fair Oaks Golf Park, a state-of-the-art golf practice facility in Fairfax, Va., that was nationally recognized as one of the premier golf training facilities in the Mid-Atlantic. Managed development and sales and merchandise strategies. Currently a residential interior designer.

School Affiliation: Alumna '88; children Camille ’17, Charlotte ’20 and Billy ’22

Professional Background: Board member at Washington Hebrew Congregation (Chair, Youth Committee and Second Sunday Soup Kitchen Program); volunteer with development efforts at Miriam’s Kitchen; active volunteer at Harbor School, Norwood School and Horizons of Greater Washington

Lesley Lavalleye

Lesley Lavalleye

Elected to Board: 2010

Occupation: Worked as a manufacturing engineer and financial analyst after graduating from MIT with an SP in chemical engineering and an MBA from The Wharton School.

School Affiliation: daughters Alexandra ’06, Courtney ’08 and Jacqueline ’10. Served as president of the Bullis Parents Association, 2007-2009.

Professional Background: Volunteers with a number of organizations including Cause (Comfort for America’s Uniformed Services), an organization providing services to soldiers at military hospitals. Serves on the board of directors of Cause.

Pinkie Mayfield

Elected to Board: 2019

Occupation:Vice President of Corporate Affairs and Chief Communications Officer at Graham Holdings Company (formerly The Washington Post Company)

School Affiliation: child Carl ’28

Professional Background: Mayfield serves as a key member of the executive team responsible for corporate affairs, public relations, communications, strategic initiatives and advising the Chairman on matters of special interest. A seasoned finance executive, Mayfield previously served as the Vice President of Corporate Solutions. Prior to joining Graham Holdings in 1998, Mayfield was a Vice President and Trust Officer at NationsBank (now Bank of America) in the Investment Services Division as part of the Foundations & Endowments Group. She began her career with Prudential-Bache Securities.

With a strong commitment to community service focused on the advancement of women and children through education, Mayfield currently serves on board of directors of the District of Columbia College Access Program (DC-CAP), the Washington Area Women’s Foundation and the Arlington Chamber of Commerce. She is also a trustee of the Philip L. Graham Fund and chairs the board of Leadership Greater Washington (Class of 2001).

Honored with the Washington Business Journal’s Women Who Mean Business Award (2013), Mayfield also received an Honorary Doctor of Laws (2016) from her alma mater, Trinity Washington University, where she previously served on the board of trustees.

Mayfield graduated magna cum laude with a BA in business administration from Trinity Washington University, and earned an MBA from the University of Maryland University College. She and her husband, Carl A. Mayfield, live in Washington, DC, with their two children.

Helen Stefan Moreau

Elected to Board: 2019

Occupation: Ms. Moreau is the President and CEO/Founder of The Midtown Group— one of the best staffing firms in the nation. Her company is a 13-time winner of the Washington Business Journal’s “Best Place to Work” award and Inc. Magazine named Midtown one of the 5,000 fastest growing companies in the United States 3 years in a row. Based in the nation’s capital, Ms. Moreau’s company serves clients such as the Smithsonian Institute, the DC Streetcar, Amazon Web Services, the Federal Home Loan Mortgage Corporation (Freddie Mac), and countless agencies throughout the federal government. 

School Affiliation: children William ’21 and Victoria ‘23

Professional Background: Ms. Moreau opened her company in 1989— just months after the start of her career in the staffing industry following her 1988 graduation from the University of Florida (UF). In 2008, she was accepted as a member of the prestigious Young Presidents’ Organization and served on the executive team as her chapter’s membership chair, making her the chapter’s first female chairperson. Ms. Moreau was also chosen as a member of The Committee of 200 (C200), a membership organization of the world’s most successful women entrepreneurs and corporate innovators.

A dedicated member of the UF Foundation, Ms. Moreau is also a member of the State University System (SUS) Undergraduate Dean’s Council for the College of Journalism and Communications. In 2015, she was inducted into the Gator100, honoring the fastest-growing, Gator-owned or Gator-led businesses in the world.

Ms. Moreau is a fierce champion for women around the world. In 2007 and 2008, she was awarded “Board Member of the Year” for her involvement with Rachael’s Women’s Center, helping local women in DC step up and out of homelessness. She was also a member of the Zonta Club, empowering women across the nation through service and advocacy. In addition, she serves as Vice Chair of the Studio Samuel Foundation, ensuring vulnerable girls in Ethiopia overcome endless obstacles to complete their education. Ms. Moreau’s involvement guarantees each girl will receive healthcare in addition to the life skills she learns while attending Studio Samuel.

David A. Pepper

Elected to Board: 2019

Occupation: Chief Development Officer of Choice Hotels International, Inc. (NYSE: CHH), one of the world’s largest hotel companies, where he is responsible for driving unit growth for each of the company’s brands in key markets worldwide.

School Affiliation: child Samantha ‘24

Professional Background: Prior to joining Choice Hotels in 2002, Mr. Pepper served as vice president of franchise sales for Hawthorn Suites and Microtel Inns. He also served as director of franchise sales for Holiday Inn Worldwide.

Mr. Pepper joined earned a bachelor’s degree in economics from Tufts University. In addition to his work with Bullis, he serves on the planning committee for the annual NYU International Hospitality Industry Investment Conference and is involved with the UJA-Federation Hospitality Division.

Susan Richman

Elected to Board: 2019

Occupation: Licensed Clinical Professional Counselor and co-founder of Bethesda Counseling Associates

School Affiliation: children Blake ’10, Margaux ’11 and Bennett ’24

Professional Background: As a psychotherapist, Susan has worked with adults and adolescents in her private practice for over 10 years. She has also provided counseling services at the Montgomery County Commission for Women and in private and public school settings.

Susan became an active member of the Bullis community since 2001. From 2003-2006 she served as a Classroom Parent Representative, and from 2006-2008 she was the Bullis Representative to the Parents Council of Washington as well as a member of the Parents Association Board. Susan also chaired several fundraising committees at Landon and was actively involved in the parent education program at Primary Day School.

Patty Sanders

Elected to Board: 2019

School Affiliation: children Hayley ’18 Jacob ’21, PA President

Professional Background: Patty earned her Bachelor of Science in Psychology from the University of Mary Washington. She worked in the fields of human resources and personnel management. At Bullis, she has served as co-chair of the Library Committee, PA Treasurer and PA Vice President.

Muriel Suggs


Elected to Board: June 2018

Occupation: Neuroscience Sr. Account Specialist at Allergan School


Affiliation: child: McKenzie '24

Professional Background: Muriel earned her Bachelor of Science in Biology from Frostburg State University. Over the past 30 years, she has worked in the Healthcare Industry as a pharmaceutical sales representative for various Fortune 500 companies. Muriel's active volunteerism began when she joined the Illustrious Alpha Kappa Alpha Sorority, which was incorporated in 1982. She has been a power source for organizations she believes in ever since. She has added her enthusiasm, energy, drive, and can-do spirit to the Bullis PA Board Member over the past four years, currently Co-Chairperson for New Families. She also serves as the grade six Bullis fund ambassador.


Cyndi Bullis Vasco ’83, Chair, Alumni Board

Cyndi Bullis Vasco

Elected to Board: 2009 (ex-officio)

Occupation: Nurse practitioner

School Affiliation: Alumna Class of 1983; husband Kevin Vasco ’84; daughter Lucia ’20

Professional Background: Holds a B.S. in nursing from the University of Vermont, an M.S. in nursing from the University of Massachusetts and a graduate certificate in business of medicine from Johns Hopkins University, Carey School of Business. Has worked at the Washington Hospital Center as a nurse practitioner in cardiac surgery and interventional radiology since 1999.

Paula Widerlite


Elected to Board: 2012

Occupation: Chief Strategy Officer, Anne Arundel Medical Center

School Affiliation: daughters Elise ’11 and Chelsea ’14; former Parent Association President

Professional Background: Strategic planning, market and business development, public relations/communications, marketing, physician relations and philanthropy for the healthcare industry. Active in a number of professional healthcare associations and community organizations.

Trustee Emeriti

Edmund Bartlett
Bryant F. Foulger ’73
Jerome Friedlander
Ronald A. Howard
Bruce Kogod
Thomas L. Nordlinger
BGen Lewis S. Norman, Jr. ’39, USAF (Ret)
David H. Pensky
James F. Rill
Melvin O. Wright

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