Main Office 5530 WISCONSIN AVENUE SUITE 1100 CHEVY CHASE, MD 20815 Main Number (301) 657-2900 Fax (301) 657-2166 Email Loading Email... Randi D. Marquez, CPA, MST Senior Partner Phone 301-657-2900 ext. 17 Fax 301-657-2166 Email Loading Email... Allan E. Roberts, CPA, MST Managing Partner Phone 301-657-2900 ext. 16 Email Loading Email... Robert C. Merkle, CPA Partner Office 301-657-2900 ext. 19 Fax 301-657-2166 Email Loading Email... Kanwaldeep (Kay) Singh, CPA Partner Office 301-657-2900 ext. 35 Fax 301-657-2166 Email Loading Email... Frida L. Zipor, CPA Partner Office 301-657-2900 ext. 20 Fax 301-657-2166 Email Loading Email... Sheldon J. Liptz, CPA Partner - Retired Email Loading Email...