(a) General Prohibition. An attorney or law firm may deposit in an attorney trust account only those funds required to be deposited in that account by Rule 19-404 or permitted to be so deposited by section (b) of this Rule.
(1) An attorney or law firm shall either (A) deposit into an attorney trust account funds to pay any fees, service charges, or minimum balance required by the financial institution to open or maintain the account, including those fees that cannot be charged against interest due to the Maryland Legal Services Corporation Fund pursuant to Rule 19-411 (b)(1)(D), or (B) enter into an agreement with the financial institution to have any fees or charges deducted from an operating account maintained by the attorney or law firm. The attorney or law firm may deposit into an attorney trust account any funds expected to be advanced on behalf of a client and expected to be reimbursed to the attorney by the client.
(2) An attorney or law firm may deposit into an attorney trust account funds belonging in part to a client and in part presently or potentially to the attorney or law firm. The portion belonging to the attorney or law firm shall be withdrawn promptly when the attorney or law firm becomes entitled to the funds, but any portion disputed by the client shall remain in the account until the dispute is resolved.
(3) Funds of a client or beneficial owner may be pooled and commingled in an attorney trust account with the funds held for other clients or beneficial owners.
Cross reference: See Code, Business Occupations and Professions Article, §§ 10-301 et seq.