Maryland Code, Tax-Property § 8-226

(i) actually resides in a dwelling in which the individual has a legal interest; or

(ii) under a court order or separation agreement, permits a spouse, a former spouse, or a child or the individual's family to reside, without payment of rent, in a dwelling in which the individual has a legal interest.

(i) as sole owner;

(ii) as a joint tenant;

(iii) as a tenant in common;

(iv) as a tenant by the entireties;

(v) through membership in a cooperative;

(vi) under a land installment contract, as defined in § 10-101 of the Real Property Article; or

(vii) as a holder of a life estate.

(i) has been owned and occupied by a homeowner for at least 3 years prior to a zoning change described in item (iii) of this paragraph;

(ii) was zoned as residential at the time of acquisition; and

(iii) has been rezoned from a residential to a commercial or industrial zoning classification through comprehensive rezoning not initiated or requested by the homeowner or anyone having an interest in the property.