This appeal is a reminder of the value of a crystal-clear record of the parties’ consent to have a magistrate judge preside over their case under 28 U.S.C. § 636(c), especially when the magistrate judge assignment changes. Such a change occurred here, and the documentation of the consents to the new magistrate judge leaves something to be desired. We conclude in the end, however, that the record of consent, both expressed in writing and implied from conduct, is sufficiently clear that the new magistrate judge could properly enter final judgment. On the merits, the appellant challenges two discretionary matters of case management — denial of additional extensions of time for discovery, and a decision to overlook minor failures to comply with the local rule on summary judgment. We find no abuse of discretion, so we affirm.
I. Factual and Procedural Background
Plaintiff-appellant Allan Stevo has lived in Blue Island, Illinois his entire life. He has been active in local politics, including an unsuccessful run for mayor against one of the defendant-appellees here. In 2001, Blue Island passed an ordinance requiring all homes to have an outside water meter. Letters were sent to all residents in November 2003, and again to Stevo in January 2005, requesting that they schedule an appointment to install a meter. Stevo did not do so. In April 2005, notice was post *883 ed on his home, and Stevo (or someone else at his address) refused a certified letter from the city water superintendent. That letter threatened to shut off Stevo’s water on April 27, 2005 unless steps were taken to relocate his meter. Steps were not taken, and the water was shut off, remaining off for about seven weeks. During that time, Stevo carried water from a building he owned across the street and pursued various avenues of complaint with city officials. Finally, on June 12, 2005, Stevo arranged for an outside meter installation. The meter was installed, and his water service was restored two days later.
Stevo sued the city, the mayor, and the aldermen in November 2007 alleging that his water was shut off without due process of law and that he was singled out as a “class of one” for irrational or political reasons in violation of the equal protection clause of the Fourteenth Amendment. After surviving a motion to dismiss, the case was assigned to Magistrate Judge Keys based on the written consent of all parties. Discovery continued over fifteen months, and during that time the court extended the discovery cut-off date seven times. Stevo alternately proceeded pro se and was represented by counsel. He was represented by counsel when he consented to proceed before Magistrate Judge Keys, and he was represented by his current counsel when the case was reassigned to Magistrate Judge Finnegan and during her consideration of defendants’ summary judgment motion.
Magistrate Judge Keys cut off discovery on February 24, 2010, though he gave permission for each side to take one more contemplated deposition. Stevo’s new counsel sought but was refused additional discovery, and Stevo challenges that ruling here. While the summary judgment motion was pending, the judge extended briefing deadlines and allowed Stevo to amend his complaint to include equal protection claims. Rather than respond to defendants’ arguments and stated facts, counsel for Stevo opposed the summary judgment motion by objecting to violations of Northern District of Illinois Local Rule 56.1 by defendants. He argued that defendants had included their legal arguments in the motion itself rather than in a separate memorandum and had failed to number the paragraphs in their statement of facts. Magistrate Judge Finnegan exercised her discretion not to prolong the lawsuit and decided not to enforce strictly the district court’s local rule. She denied Stevo’s objections. She also gave him more time to submit a substantive response to the summary judgment motion. Stevo did not do so, however, and the judge then granted summary judgment for defendants.
II. Jurisdiction of the Magistrate Judge
A district judge may assign a magistrate judge to hear a civil case and render final judgment, provided that all parties consent voluntarily. 28 U.S.C. § 636(c). Consent is required because magistrates are not protected by the full guarantees of judicial independence in Article III of the Constitution. See
Mark I, Inc. v. Gruber,
The parties litigated this case before two magistrate judges. No party raised the issue of a possible defect in consent until Stevo objected in his reply brief on appeal, citing
Kalan.
Arguments raised for the first time so late in the proceedings are waived, unless of course they question appellate or subject matter jurisdiction. If the parties have not given valid consent to entry of judgment by a magistrate judge, we treat the purported judgment as not final so that we lack appellate jurisdiction. In
Kalan,
we held that lack of consent to a magistrate judge is “a jurisdictional defect that the parties cannot waive.”
In the joint Rule 26(f) conference report filed October 1, 2008, the attorneys for both sides expressly consented in writing to the jurisdiction of Magistrate Judge Keys. Dkt. No. 34 at 3. The complication here is that the case was later reassigned to then newly-appointed Magistrate Judge Finnegan. Stevo asserted for the first time in his reply brief to this court that his consent was limited on its face to Magistrate Judge Keys, and that he never consented in writing to the reassignment. The Rule 26(f) report refers to consent to both “a” magistrate judge generally and “the” magistrate judge specifically,
id.,
presenting a more ambiguous scenario than was present in
Kalan
— where consent to one named magistrate judge did not provide consent to a different magistrate judge assigned later. See
First, plaintiff Stevo and defendants impliedly consented to the reassignment to Magistrate Judge Finnegan by proceeding in her court through discovery and summary judgment without objection. See
Roell,
Second, although here the signed standard form providing consent and notice of the right to refuse was inexplicably not attached to the reassignment order when it was filed (as discussed below), the parties did consent and thereby acknowledged the required notice. The
Roell
Court stated that “notification of the right to refuse the magistrate judge is a prerequisite to any inference of consent.”
Id.
at 587 n. 5,
As noted, for unknown reasons the signed consent form evidencing notice does not appear in the district court’s electronic docket or in the record on appeal, either attached to the reassignment where it should routinely be, or otherwise. As we noted in
Kalan,
evidence of voluntary consent should appear in the record.
The district court’s docket entry 37 refers to an attached consent form. The form could only have been “omitted from ... the record by error or accident,” as contemplated in Federal Rule of Appellate Procedure 10(e)(2). We have, and exercise here, the authority under that rule to correct that error and order that the record be supplemented with the signed consent form that was submitted to this court at the time of oral argument. See Fed. R.App. P. 10(e)(2)(C). Where we have previously declined to exercise our authority to supplement the record, our purpose has often been to avoid rewarding parties for failing to correct known deficiencies. See,
e.g., LaFollette v. Savage,
All parties voluntarily consented to proceedings before Magistrate Judge Finnegan, who therefore had jurisdiction under § 636(c) to hear the case and render final judgment. That valid final judgment having been entered, we have jurisdiction under 28 U.S.C. § 1291 to consider this appeal. We turn next to the merits of Stevo’s appeal.
III. Rulings by the District Court
Ordinarily, we review a district court’s grant of summary judgment de novo.
Omnicare, Inc. v. UnitedHealth Group, Inc.,
Stevo asserts that the district court abused its discretion when, after extending discovery seven times over fifteen months, it finally brought the discovery period to a close. We disagree. Discovery must have an end point, and “the decision to cut off discovery is committed to the management skills of the district court.”
K.F.P. v. Dane County,
Federal Rule of Civil Procedure 56(d) provides an opportunity for a party responding to a summary judgment motion to alert the district court that he lacks “facts essential to justify [his] opposition” and to request additional time or discovery. From the record it appears that Stevo did not seek Rule 56(d) relief or renew his earlier objections to the close of discovery while the summary judgment motion was pending. Stevo confined his opposition briefing entirely to the Local Rule 56.1 issue discussed below. He did not mention the need for additional discovery in his earlier (granted) motion for additional time to respond to the motion. See Dkt. Nos. 79, 82, and 75. The district court did not abuse its discretion by ruling on defendants’ summary judgment motion when it did. See
Wallace v. Tilley,
Finally, Stevo argues that the district court erred by considering the defendants’ summary judgment motion although it did not comply strictly with all formal requirements of Local Rule 56.1. This argument reflects a profound misunderstanding of the relevant law and the purposes of the formal requirements in the district court’s Local Rule 56.1. Because of the high volume of summary judgment motions and the benefits of clear presenta
*887
tion of relevant evidence and law, we have repeatedly held that district judges are entitled to insist on strict compliance with local rules designed to promote the clarity of summary judgment filings.
E.g., Ammons v. Aramark Uniform Services, Inc.,
In a case squarely on point here, for example, we found no error in a district judge’s decision to overlook similar technical failures in a motion for summary judgment where the motion provided ample notice of the relevant facts and law.
Harmon v. OKI Systems,
As the district court noted, Stevo could have preserved his Local Rule 56.1 objections while also complying with the rule himself and filing a substantive response to defendants’ factual statement. S.A. 17. In fact, the court allowed Stevo extra time to do so after announcing its ruling on the Rule 56.1 issue. Id. at 9. This reciprocal leniency from Magistrate Judge Finnegan, designed to promote the resolution of the case on the merits and without undue delay or expense, but applied with care so as not to prejudice either side, was very much in keeping with the spirit of the rules themselves. Local rules, like the Federal Rules of Civil Procedure that they supplement, should be construed to provide for the “just, speedy, and inexpensive determination of every action” on its merits. Fed. R.Civ.P. 1. These rules were not intended to provide a maze of technical traps to complicate and delay litigation without advancing the merits. The district court did not abuse its discretion in its application of Local Rule 56.1 here.
Accordingly, the judgment of the district court in favor of defendants is affirmed.
