Before issuing an order under this subtitle, the Commissioner shall give notice and an opportunity for a hearing to the owner and any operator of the premises and to any commercial tenant of the premises. The notice shall state:the date, place, and time of the hearing; the right of the persons receiving the notice to be heard and to be represented at the hearing; and the possible consequences of failure to appear, including the possible issuance of a default order directing the premises to be closed. The notice shall be given by personal service or by certified or registered mail to the owner, operator, and commercial tenant, as their names and addresses:are recorded in the Land Records of Baltimore City; appear in the registration statement filed under City Code <cite data-path="|13">Article 13</cite>, Subtitle 4 {“Registration of Non-Owner-Occupied Dwellings, etc.”}; or are otherwise known or readily ascertainable. In addition, the notice shall be posted on the premises. City Code, 1976/83, art. 19, §234(b)(1) - (3) Ord. 86-642 Ord. 02-475 Ord. 07-619 Ord. 18-130