All States Tax 3 years ago ID: #411984 Listed In : Finance and Banking 22720 Washington St, Leonardtown, MD 20650, USA 301-997-1810 http://all-statestax.com Business Description Tax Preparation in Leonardtown, MD Reviews & Ratings Write a Review No Review. Please login / register to add your review. Tags : payroll services Tax Preparation Income Tax Services Tax prep Corporate Tax Preparation Corporate Tax Planning