Section 6203 - Petition for vacation; notice requirements(a) In any action commenced in Superior Court, the person who holds legal title to the dedicated open space or parkland, the owner of the property abutting said dedicated property or the county or municipality in which said dedicated property is located, may apply to the Superior Court of such county or municipality for the vacation thereof, by first giving notice to the county or municipality if it is not the applicant, to the person holding the legal title to said dedicated property, to all persons owning property abutting or contiguous to said dedicated property and to all persons owning property within a subdivision in which said dedicated property is located, by mailing to the county and to such persons or their legal representatives, if known, at their last known address, written notice of their intent to file such petition with the Court at least 10 days prior to filing.(b) Upon filing any petition in Superior Court to vacate a dedication, formal notice shall be provided by the petitioner to the chief executive officer(s) of the county or municipality in which the dedicated property is located, by service of process as provided by law. Written notice by registered mail, return receipt requested, to such party or legal representative at their last known post office address at the time of the filing of the application shall also be made upon the person holding legal title to said property, upon all persons owning property abutting or contiguous to said dedicated property, upon all persons owning property within a subdivision in which said dedicated property is located and upon any persons owning property not in the subdivision but within 200 yards of said dedicated property and by posting signs along the lot lines of the dedicated property proposed to be vacated clearly indicating the intent to vacate said property, at least 20 days prior to the hearing date set by the Court on such petitions and also by publishing notice at least once a week for 2 consecutive weeks to all such parties in interest in a newspaper of general circulation in the county or municipality in which said dedicated property is located, clearly providing the place, time and hearing date on the petition set by the Court, at least 20 days prior thereto.66 Del. Laws, c. 423, §1.;