“I enjoy understanding the mission and needs of our clients and use that information in order to give the most efficient and practical solutions while enhancing my own expertise.”
– Sean Way, In-Charge Accountant
“I enjoy providing value to clients through useful data and effective management tools”
– David Nazari, In-Charge Accountant


Effective Friday, March 20th, until further notice,  we will be closing the office. We will continue to work remotely and will be available by phone and email. During the period the office is closed we will not have the ability to produce paper tax returns and other forms. All returns will be sent in electronic format via secure mail or portal…



Today, Mayor Muriel Bowser and Chief Financial Officer Jeffrey DeWitt announced that the deadline for taxpayers to file and pay their 2019 District of Columbia individual and fiduciary income tax returns (D-40, D-41, and D-40B), partnership tax returns (D-65), and franchise tax returns (D-20, D-30) is extended to July 15, 2020…


Updated Summary of tax deadlines for individuals and businesses including individual recovery rebate/credits, Coronavirus-related retirement plan distribution, taxation and re-contributions, individual deadline extensions; Employee retention credit for employers, delayed payroll taxes, and much more 

We are CPAs and Accountants proudly serving Rockville, MD, Virginia and the Washington D.C. Metropolitan area.

Who We Are

Squire, Lemkin + Company, LLP (SL+Co) is a boutique CPA firm in Rockville, MD, providing high quality accounting services to a diverse client base. SL+Co specializing in Audit Services, Tax Preparation, Financial Planning, Business Consulting, Nonprofit Accounting Services, Retirement Plan Compliance & Design and Management Advisory.

Mutual respect, professional excellence, and open, honest communication are not simply words, they are the core values we strive to bring to life every day. Each client comes to our firm with the expectation that our response to their financial needs – tax, audit or financial services – will be individually tailored; that their phone calls will be promptly and courteously returned; their deadlines will be met; that the results of our work will be carefully and thoroughly discussed and explained.