Exhibit 3.20 DOMESTIC LIMITED LIABILITY COMPANY CERTIFICATE OF ORGANIZATION FEDERAL EMPLOYER IDENTIFICATION NO.____________________________ 1. The name of the limited liability company:________________________________ __________________________________________________________________________ 2. The street address of the office in Massachusetts at which the limited liability company's records will be maintained: __________________________________________________________________________ __________________________________________________________________________ 3a. The general character of its business is:_________________________________ __________________________________________________________________________ __________________________________________________________________________ __________________________________________________________________________ 3b. If the limited liability company is organized to render a professional service, the service to be rendered, and the name and address of each member or manager who will render a service in Massachusetts are as follows:__________________________________________________________________ __________________________________________________________________________ __________________________________________________________________________ __________________________________________________________________________ __________________________________________________________________________ The limited liability company will abide by and be subject to any conditions or limitations established by any regulating board, including the provisions of liability insurance required by Chapter 156C, Section 65. This Certificate or Organization is accompanied by a certificate from the applicable regulating board certifying that each member or manager who will render a professional service in Massachusetts is duly licensed. 4. The latest date of dissolution, if any:___________________________________ __________________________________________________________________________ 5. The name and business address of the agent for service of process required to be maintained by M.G.L. Chapter 156C, Section 5 is: CT Corporation System, 101 Federal Street, Boston, Massachusetts 02110 __________________________________________________________________________ 6. The name and business address, if different from the office location, of each manager is as follows: NAME BUSINESS ADDRESS ____________________________________ ____________________________________ ____________________________________ ____________________________________ ____________________________________ ____________________________________ ____________________________________ ____________________________________ ____________________________________ ____________________________________ ____________________________________ ____________________________________ 7. The name and business address, if different from the office location, of any person in addition to the manager, who is authorized to execute documents to be filed with the Division is as follows: NAME BUSINESS ADDRESS ____________________________________ ____________________________________ ____________________________________ ____________________________________ ____________________________________ ____________________________________ ____________________________________ ____________________________________ ____________________________________ ____________________________________ ____________________________________ ____________________________________ 8. The name and business address, if different from the office location, of the person, if any, authorized to execute, acknowledge, deliver and record any recordable instrument purporting to affect an interest in real property is:_______________________________________________________________________ __________________________________________________________________________ __________________________________________________________________________ 9. Other matters the authorized persons have determined to include are as follows:__________________________________________________________________ __________________________________________________________________________ __________________________________________________________________________ __________________________________________________________________________ __________________________________________________________________________ DATED ___________________________ _______________________________________ (Name of Limited Liability Company) By:____________________________________ _______________________________________ (Print Name)