N.M. Stat. § 42-2-19
Disqualification of judge; effect.
A. Whenever a party or parties to any special alternative proceeding in eminent
domain shall make and file an affidavit that the judge before whom the proceeding is
pending, whether he be the resident judge or a judge designated by such resident
judge, cannot, according to the belief of the party to said proceeding making such
affidavit, preside over the same with impartiality, such affidavit shall operate as an
automatic severance of the proceedings as to all tracts in which the disqualifying party
or parties has an interest. Nothing herein shall be construed to authorize separate trials
of different interests in the same tract.
Another judge shall be designated for the trial of the proceeding as to the severed
portion thereof by agreement of counsel representing the respective parties. Upon the
failure of such counsel to agree, then such facts shall be certified to the chief justice of
the supreme court of New Mexico, and the chief justice shall thereupon designate the
judge to try the severed portion of such proceeding.
B. Such affidavit shall be filed within the time allowed for filing objections to the
preliminary order of entry and not thereafter.