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About Our Firm

About Us

For over sixty years, Garbelman Winslow has been providing quality, personalized financial guidance to local individuals and businesses. Garbelman Winslow's expertise ranges from basic tax management and accounting services to more in-depth services such as audits, financial statements, and financial planning.

Garbelman Winslow is one of the leading firms in and throughout the Washington D.C. metropolitan area. By combining our expertise, experience and the team mentality of our staff, we assure that every client receives the close analysis and attention they deserve. Our dedication to high standards, hiring of seasoned tax professionals, and work ethic is the reason our client base returns year after year.

Our Mission

Our mission is to help clients maintain financial viability in the present, while taking a proactive approach to achieve future goals. This requires open communication to reach an understanding of our clients' needs through research and sound analysis. Garbelman Winslow is dedicated to meeting these goals with high standards of excellence and professionalism. We have been a staple of the Upper Marlboro Business Community for over 50 years and pride ourselves on the level of esteem we have earned.

Our dedication to hard work has earned the respect of the business and financial community in and around the Washington D.C. metropolitan area. We believe this to be a direct derivative of our talent and responsiveness to our client base. Whether you are a current or prospective client, rest assured that individuals and businesses who choose Garbelman Winslow receive competent and timely advice.

John J. Benish, Jr., CPA, CGMA

Email: jbj@gwcpas.com
Phone: (301) 599-9666 ext 22

Academic Credentials:

  • University of Maryland, College Park, Bachelor of Science, December 1985
  • Certified Public Accountant, February 1987
  • Chartered Global Management Accountant, November 2014
 

History with Firm:

  • Employed July 1985
  • Partner July 1, 1994
  • Managing Partner, July 2011
 

Professional Societies & Affiliations:

  • American Institute of Certified Public Accountants
  • Association of Builders and Contractors - associate member
  • Association of Practicing Certified Public Accountants
  • Calvert County Chamber of Commerce
  • Maryland Association of Certified Public Accountants Southern Maryland Chapter - President (1997-1998)
  • Prince George's County Chamber of Commerce

Community Involvement:

  • Rotary Club of Upper Marlboro (1989-present), President (1996-1997), (2008-2009)
  • Vesta, Inc.-Board of Directors (1994-1999)
  • Melwood Horticultural Training Center, Inc. - Board of Directors (1998-2007)
  • University of Maryland Terrapin Club
  • University of Maryland Alumni Association
  • Southern Prince George's Rotary Foundation, Inc. - Treasurer (1998-present)
  • Friends of Calvert Hospice, Inc. Director (2000-2006)
  • Boy Scouts of America Troop 429 - Committee Member (2001-2010)

 

Specialties:

  • Small Business consulting including construction contractors, medical practices, attorneys, retirement plans, manufactures, real estate
  • Business and Individual Income Taxes
  • Business and Individual Tax, Financial Planning, Estate Planning


Samantha A. Bowling, CPA, CGMA

Email: sab@gwcpas.com
Phone:(301) 599-9666 ext 23

Academic Credentials:

  • Certified Public Accountant, February, 1998 (Licensed in Maryland, Virginia and D.C.)
  • Chartered Global Management Accountant, November 2014
  • Salisbury State University, Salisbury, Maryland - Bachelor of Science, Magna Cum Laude, Accounting, June, 1993
  • College of Southern Maryland, La Plata, Maryland, Associates of Arts, Business Administration, June,1991
 

History with Firm:

  • Employed June, 1993
  • Partner July, 2005
 

Honors:

  • National Dean's List 1992
  • Who's Who Among Students in Junior Colleges, 1991
  • Dean's Cup Recipient, 1991
  • Wall Street Journal Award for Academic Excellence, 1991
  • Scholarship Recipient: Transfer Merit Scholarship from Salisbury State University 1991, Achievement Award 1991, Alumni Association Scholarship 1991 and 1990, Institutional Scholarship 1989, and the Mary Matula Scholarship 1989
  • Dean's List 1989-1993
  • Reward for Academic Performance 1987-1989
  • Recognized in The Cambridge Who's Who of Executives and Professionals 2006 & 2007 Edition

 

Professional Societies & Affiliations:

  • American Institute of Certified Public Accountants
  • Association of Practicing Certified Public Accountants
  • Delta Mu Delta Honor Society
  • Maryland Association of Certified Public Accountants Southern Maryland Chapter - President and President-Elect (2003,2004-2005,2009,2010-2012), Secretary (2002,2006,2008), Board Member (1999-2011)
  • Phi Beta Phi Honor Society
  • Salisbury State University Alumni Association
  • Life-time Member of Cambridge Who's Who
  • AICPA Employee Benefit Plan Audit Quality Center Member
  • Maryland Association of Certified Public Accountants Board of Directors April, 2011 - May, 2013
  • AICPA Council Member May, 2013 - May, 2016
  • MACPA’s Task Force on Equality, Diversity and Inclusion Chairman June, 2014
  • MACPA Nominations Committee, July 2014
  • Thriveal CPA Network

 

Community Involvement:

  • Team Captain - Avon Walk for Breast Cancer (2005-2011)
  • Member - St. Mary's Catholic Church, Bryantown (1993-Present)
  • La Plata High School Reunion Committee
  • Student Tutor

 

Specialties:

  • Auditing, Accounting and Consulting: Construction Companies and Related Fields, Distributors/Retailers, Attorneys, Non-Profit Organizations and Pension Plans
  • Tax: Business, Individual and Unrelated Business Income
  • Financial Software: QuickBooks and Peachtree


John E. Stringer, CPA

Academic Credentials:

  • Benjamin Franklin University, Washington, DC, Bachelor of Commercial Science, June 1969
  • Certified Public Accountant, Maryland, 1972
 

Professional History:

  • Partner, Quinn, Aronhalt & Company, CPA’S 1973-1975
  • Partner, Aronhalt, Stringer & Company, CPA’S 1976-2014
  • Partner, Garbelman Winslow CPA November 2014
 

Professional Societies & Affiliations:

  • American Institute of Certified Public Accountants
  • Maryland Association of Certified Public Accountants
  • Maryland Society of Accounting & Tax Professionals

 

Community Involvement:

  • Rotary Club of Charles County ( LaPlata) – Past President 1991-1992
  • Charles County Rotary Foundation – Volunteering Services (prior officer/director)
  • Down Syndrome Association of Southern Maryland – Volunteering Services (prior officer/director)
  • Literacy Worldwide Foundation, Inc. – Volunteering services ( prior director)

 

Specialties:

  • Tax: Business, Individual, Estates & Trusts
  • Estate Planning
  • Estate & Trust Administration
  • Small Business Consulting – Professional Services and Contractors


William P. Ewaski, Jr., CPA

Email: wpe@gwcpas.com
Phone: (301)-599-9666 ext. 21

Academic Credentials:

  • Benjamin Franklin University, Washington, D.C., Bachelor of Science, Accounting, May, 1977
  • Certified Public Accountant, January, 1980
 

History with Firm:

  • Employed since June, 1972
  • Junior Partner, July, 1986
  • Senior Partner, July, 1991 to June, 2011
  • Managing Partner, May 2007 to June, 2011
  • Consultant, July, 2011

 

Professional Societies & Affiliations:

  • American Institute of Certified Public Accountants
  • Association of Practicing Certified Public Accountant
  • Benjamin Franklin University Alumni Association - Life Member
  • Maryland Association of Certified Public Accountants
  • Prince George's County Chamber of Commerce
  • The George Washington University Alumni Association - Life Member

 

Community Involvement:

  • Melwood Townhouse Office Condominiums Board of Directors
  • Suitland High School Reunion Committee
  • Calvert County 35-and-Over Softball League (Coach and Sponsor)
  • Mount Harmony Methodist Church - Assistant Treasurer
  • Team Member of Relay for Life

 

Specialties:

  • Small business consulting including medical practice and construction contractors
  • Individual and corporate income taxes
  • Estate planning
  • Personal financial planning


Edwin R. Aronhalt, CPA

Academic Credentials:

  • Graduate of Strayer University, May, 1962
  • Certified Public Accountant, District of Columbia, August, 1962
  • Certified Public Accountant, Maryland, September, 1969
 

Professional History:

  • Employed by a large District of Columbia Certified Public Accounting Firm for 10 Years after graduation, becoming a partner in that firm.
  • Managing Partner, Aronhalt, Stringer & Company, CPA’s 1976-2014
  • Certified Public Accounting with Garbelman Winslow CPA , November 2014

 

Professional Societies & Affiliations:

  • Life Member of American Institute of Certified Public Accountants
  • Maryland Association of Certified Public Accountants

 

Community Involvement:

  • Melwood Townhouse Office Condominiums Treasurer
  • St. Nicholas Lutheran Church Finance Committee

 

Specialties:

  • Not for Profit Organizations
  • Small Businesses
  • Individual and Corporate Income Taxes
  • Estate Planning


ACCOUNTING STAFF

  • Lisa Burdick, CPA - Accounting Manager
  • Lori Walker - Staff Accountant
  • Michelle Truscott - Staff Accountant
  • Jenna Underwood - Staff Accountant
  • Tom Hickey - Staff Accountant, Enrolled Agent
  • John M. Benish - Staff Accountant

 

ADMINISTRATIVE STAFF

  • Kelly Edelen - Office Manager
  • Brianna Washington – Receptionist
  • Michele White - Receptionist

 

IT DEPARTMENT/PAYROLL

  • Rosemarie Van Hecke - IT Manager
  • Dan Jenkins - Network Administrator
  • Arliss Palmer - IT Professional


  • Garbelman, Winslow, Benish, Deck,
    Grannell, Ewaski & Bowling, CPA's
  • Melwood Professional Center
  • 9540 Pennsylvania Avenue
  •  
  • Upper Marlboro, MD 20772
  • Telephone: (301) 599-9666
  • Fax: (301) 599-1067