Md. R. Estate Settlem. 6-212
The personal representative shall report promptly by verified statement all property of the decedent discovered after the filing of the petition. If that property increases the value of all property of the decedent to the point where Rule 6-206(c) is applicable, the register shall direct appropriate proceedings pursuant to that Rule. If the value of all property of the decedent is increased to more than the allowable limits of a small estate, the administration as a small estate shall be discontinued and administration shall proceed by the filing of a Petition for Administrative Probate (Rule 6-301 ) or Judicial Probate (Rule 6-302 ), and the Notice of Appointment (Rule 6-311 ) shall recite the existence of the prior small estate proceeding.
Md. R. Estate Settlem. 6-212
Code, Estates and Trusts Article, § 5-605.