(a) Where a real property assessment challenge commenced under this article has been pending for at least two years from the date of the commencement of the proceeding, either party may demand, by serving a written demand, that the parties file a written appraisal of the property which is the subject of the proceeding and serve same within one hundred twenty days of service of such demand. The demand shall be in writing and served by personal delivery or certified mail, return receipt requested. Both parties shall thereafter file an appraisal or show good cause as to why such demand cannot be complied with within such time period. Either party may move to dismiss the proceeding by reason of the other party's failure to prosecute the proceeding and file the appraisal pursuant to the demand. Unless the party shows good cause for failing to file the appraisal, the court may in its discretion either dismiss or grant the petition and such order shall constitute a final adjudication of all issues raised in the proceeding.

(b) Upon the serving and filing the appraisals pursuant to a demand made under paragraph (a) of this subdivision, the court shall schedule a conference with the parties to be held within ninety days to discuss settlement, resolve disclosure and decide other pretrial issues.

(c) After completion of the pretrial conference required by this subdivision, the respondent may serve and file a written demand that petitioner file a note of issue within thirty days of service of the demand therefor. The demand shall be in writing and served by personal delivery or certified mail, return receipt requested. Should the petitioner fail to file a note of issue within thirty days of the service of demand, the proceeding shall be deemed to have been abandoned, an order dismissing the petition shall be entered without notice and such order shall constitute a final adjudication of all issues raised in the proceeding, unless the court or judge otherwise orders on good cause shown.

(d) Should the respondent fail to demand that the petitioner file a note of issue pursuant to paragraph (c) of this subdivision within four years from the date of the commencement of the proceeding, and a note of issue has not otherwise been filed, the proceeding shall be deemed to have been abandoned and an order dismissing the petition shall be entered without notice and such order shall constitute a final adjudication of all issues raised in the proceeding, except where the parties otherwise stipulate or a court or judge otherwise orders on good cause shown within such four-year period. 3. For purposes of this section a "proceeding" shall include separate proceedings involving parcels under common ownership or separate proceedings consolidated pursuant to section seven hundred ten of this title.