(a) A limited liability company interest is assignable in whole or in part except as provided in the operating agreement.
The assignee of a member's limited liability company interest shall have no right to participate in the management of the business and affairs of a limited liability company except: (1) upon the approval of all of the members of the limited liability company other than the member assigning the limited liability company interest; or (2) upon compliance with any procedure provided for in a written operating agreement.
The existence of the restrictions on the sale or transfer of a membership interest, as contained in this chapter and, if applicable, in the operating agreement, shall be noted conspicuously on the face or back of every certificate representing a membership interest issued by a limited liability company.
Any sale or transfer in violation of such restrictions shall be void.
Although laws vary among states, and LLCs' operating agreements vary as well, there are certain procedures commonly involved in selling a percentage of an LLC.