Maryland Code, Business Regulation § 14-104

(1) a sale of an ongoing business if the owner of the business sells and intends to sell only that one business opportunity;

(2) a not-for-profit sale, for less than $500, of sales demonstration equipment, materials, or samples;

(3) an offer to sell or sale of a franchise registered or exempt from registration under Subtitle 2 of this title;

(4) an offer to sell or sale of a business if the offer or sale is regulated under the Maryland Gasohol and Gasoline Products Marketing Act  1 or the federal Petroleum Marketing Practices Act;  2

(5) an offer to sell or sale of a business opportunity with a marketing plan made in conjunction with the licensing of a federally registered trademark or service mark, provided that the seller has a minimum net worth of $1,000,000 as determined on the basis of the seller's most recent audited financial statement prepared within 13 months of the first offer that the seller makes in the State; or

(6) any other sale or transaction if the Commissioner:

(1) at least 80% of the seller is owned by one person; and

(2) the person that owns at least 80% of the seller expressly guarantees the obligations of the seller with regard to the offer or sale of a business opportunity that the seller seeks to exclude under this paragraph.