John J Callahan is a Legal Services business in Washington, DC.
John J Callahan is a company that has been operational since 2007, offering products or services in the industry of Legal Services. For additional details of the nature of this business, it is registered under with the SIC code 8111 and under the NAICS code 541110 ().
John J Callahan now supports a growing employee population of 1 to 4 and the business makes an estimated annual revenue of $100.000 to $499.999. The company can be reached for inquiries about BOTH market variables and other concerns by contacting John Callahan by phone (850) 650-7475.
For added convenience and more information, John J Callahan also has a website at , and can be accessed and followed through the social media outlets Twitter and Facebook . Visit John J Callahan’s physical single location at 1912 Sunderland Place Nw, District of Columbia, District of Columbia or locate it via the coordinates .