Md. Code, Transportation § 11–149

“Resident” means any person:

(1) Who is domiciled in this State;

(2) (i) Who owns, leases, or rents a primary place of residence in this State; and

(ii) Who regardless of the person’s domicile resides in this State for more than a year;

(3) (i) Who maintains a main or branch office or warehouse facility in this State; and

(ii) Who bases and operates motor vehicles intrastate in this State; or

(4) Who has filed as a Maryland resident for income tax purposes.