Maryland Code, Commercial Law § 12-1302

(1) A secondary mortgage loan;

(2) An open-end or revolving home equity line of credit;

(3) A construction loan;

(4) An individual who takes back a deferred purchase money mortgage in connection with the sale of residential real property owned by, and titled in the name of, the individual; or

(5) An individual who makes a mortgage loan to a borrower who is the individual's spouse, child, child's spouse, parent, sibling, grandparent, grandchild, or grandchild's spouse.