Maryland Environment Section 6-828
§ 6-828.
  (a)   This section applies to an owner of an affected property who has, with respect to the affected property, complied with the applicable requirements of §§ 6-811, 6-812, 6-815, 6-817, and 6-819 of this subtitle, and has sent to the tenant the notices required by §§ 6-820 and 6-823 of this subtitle.
  (b)   A person may not bring an action against an owner of an affected property for damages arising from alleged injury or loss to a person at risk caused by the ingestion of lead by a person at risk that is first documented by a test for EBL of 25 ug/dl or more performed between February 24, 1996 and February 23, 2001, inclusive, or 20 ug/dl or more performed between February 24, 2001 and February 23, 2006, inclusive, or 15 ug/dl or more performed on or after February 24, 2006, unless the owner has been given:
    (1)   Written notice from any person that the elevated blood level of a person at risk is:
      (i)   Greater than or equal to 25 ug/dl as first documented by a test for EBL performed between February 24, 1996 and February 23, 2001, inclusive;
      (ii)   Between February 24, 2001 and February 23, 2006, inclusive, an EBL greater than or equal to 20 ug/dl as first documented by a test for EBL performed between February 24, 2001 and February 23, 2006, inclusive; or
      (iii)   On or after February 24, 2006, an EBL greater than or equal to 15 ug/dl as first documented by a test for EBL performed on or after February 24, 2006; and
    (2)   An opportunity to make a qualified offer under § 6-831 of this subtitle.