Maryland Code, Corporations and Associations § 4A-406

(a) A member may inspect and copy, in person or by agent, from time to time on reasonable written demand, for any purpose reasonably related to the member's membership interest:

(b) Any member may inspect and copy, in person or by agent, a copy of the limited liability company's federal, state, or local income tax returns.

(c) The rights to inspect and copy records of a limited liability company may be subject to reasonable standards that may be set forth in the articles of organization or the operating agreement, including standards governing what information and documents are to be furnished, at what time and location, and at whose expense.

(d) Unless a member seeking information executes a confidentiality or nondisclosure agreement reasonably acceptable to the limited liability company restricting the use and disclosure of the information, a limited liability company shall have the right to keep confidential from members, for a reasonable period of time:

(e) Any demand by a member under this section shall be in writing and shall state the purpose of the demand.