Md. Code, Corporations and Associations § 4A–604

(a) An assignee of an economic interest in a limited liability company may become a member of the limited liability company under any of the following circumstances:

(1) In accordance with the terms of the operating agreement providing for the admission of a member;

(2) By the unanimous consent of the members; or

(3) If there are no remaining members of the limited liability company at the time the assignee obtains the economic interest, on terms that the assignee may determine in accordance with § 4A–902(b)(1)(i) of this title.

(b) An assignee who becomes a member:

(1) Has, to the extent assigned, the rights and powers, and is subject to the restrictions and liabilities, of a member under the operating agreement and this title; and

(2) Is liable for any obligations of his assignor to make capital contributions.