Shawn Hougardy (“Hougardy”) appeals from the denial of his Rule 29.15 motion following an evidentiary hearing. Hougar-dy argues that the motion court clearly erred by denying his claim that trial counsel was ineffective by misinforming Houg-ardy that a prior conviction disqualified him for long-term substance abuse treatment. Hougardy argues that as a result of this misinformation, he was prejudiced be*876cause a plea offer that Hougardy had accepted was not presented to the court, and Hougardy received a more severe sentence after trial and conviction. Because the'motion court did not conduct an independent inquiry into whether Hougardy was abandoned by post-conviction counsel, we reverse and remand for further proceedings consistent with this Opinion,

Factual and Procedural Background

Hougardy was convicted after a jury trial of attempted manufacture of methamphetamine, resisting a lawful stop, and tampering with physical evidence. Hougar-dy was sentenced as a prior and persistent felony offender and a prior drug offender1 to twenty years’ imprisonment for attempted manufacturing, seven' years’ imprisonment for resisting, and seven years’ imprisonment for tampering. The seven-year sentences were ordered to run concurrently with each other but consecutively to the twenty-year sentence. Hougardy’s convictions were affirmed on direct appeal. State v. Hougardy, 396 S.W.3d 443 (Mo. App. W.D. 2013). We need not recount the circumstances giving rise to Hougardy’s convictions, as the only issue raised by Hougardy on appeal is the extent to which trial counsel’s alleged ineffective assistance prejudiced Hougardy with respect-to sentencing.

Hougardy timely filed a pro se Rule 29.15 motion on May 14, 2013. The pro se motion raised eleven claims of ineffective assistance of trial counsel, and one claim of ineffective assistance of appellate counsel. Post-conviction counsel entered an appearance on June 10, 2013, and was granted a thirty-day extension of time to file an amended motion. An amended motion was not filed, however, until September 29, 2014,

The amended motion did not incorporate or attach the pro se claims, and asserted instead three new claims of ineffective assistance of trial counsel that were distinct from the claims raised in the- pro se motion. Specifically, the1 amended motion alleged that trial counsel ineffectively misinformed Hougardy that he was not eligible for long-term substance abuse treatment pursuant to section 217.362,2 causing Hougardy to reject a plea offer for a fifteen-year sentence and long-term substance abuse treatment.3 The amended motion also alleged two claims of ineffective assistance based on trial counsel’s failure to investigate and call Carmen Triplett and Tommy Triplett as witnesses at trial.

.After an evidentiary hearing, the motion court entered judgment on May 6, 2016 (“Judgment”) denying the claims raised in the amended motion. The Judgment included a finding .that the amended motion “was-timely filed.”

Hougardy timely filed this appeal, challenging only the motion court’s finding that trial counsel was not ineffective by misinforming Hougardy about his eligibility for long-term substance abuse treatment.

*877Standard of Review

A motion court’s ruling on a post-conviction motion is presumed correct. McLaughlin v. State, 378 S.W.3d 328, 336-37 (Mo. banc 2012). The motion court’s judgment will be overturned only when its findings of fact or conclusions of law are clearly erroneous. Id. at 337; Rule 29.15(k).4 To be clearly erroneous, we must be left with a “definite and firm, impression that a mistake has been made.” Id. (quoting Zink v. State, 278 S.W.3d 170, 175 (Mo. banc 2009)).

Análysis

Hougardy raises a single point on appeal. He challenges the motion court’s conclusion that trial counsel was not ineffective by misinforming him that he was ineligible for long-term substance abuse treatment pursuant to section 217.362. Hougardy contends that he was prejudiced because he had .accepted a plea offer that included long-term substance abuse treatment, and the accepted offer was never presented to the trial court because of trial counsel’s misinformation.5 “Preliminarily, and regardless' of any claims made by [Hougardy] on appeal ... we are compelled to sua sponte examine the record to determine whether appointed counsel complied with the requirements of Rulé [29.15(e) ], which delineates the mandatory time limits for filing amended post-conviction motions.” Price v. State, 489 S.W.3d 358, 360 (Mo. App. S.D. 2016) (citing Moore v. State, 458 S.W.3d 822, 826-27 (Mo. banc 2015)).

Our mandate following Hougardy’s direct appeal was issued on April 24, 2013. The Public Defender was notified of the filing'of Hougardy’s 'pro se motion-on May 14, 2013, the date the motion was filed. Post-conviction counsel entered an appearance for Hougardy on June-10, 2013. On the same date, post-conviction counsel filed a motion requesting an additional- thirty days to file an amended motion, which was granted on June 17, 2013.

According to Rule 29.15(g),. an amended motion must be filed:

[W]ithta:60 days of the earlier of the date both the mandate of the appellate court is issued and:

(1) Counsel is appointed, or

(2) An' entry of appearance is filed by any counsel that is not appointed but enters an appearance on behalf of mov-ant'.

The court may extend the time for filing the amended motion for one additional period not to exceed 30 days.

*878By application of tins Rule, Hougardy’s amended motion was due by September 9, 2013, affording Hougardy the benefit of the thirty day extension granted by the motion court. See Creighton v. State, No. SC95527, 2017 WL 1496952, at *2-3 (Mo. banc April 25, 2017) (holding that notification of the public defender does not constitute appointment of counsel for purposes of Rule 29.15(g), and that the time for filing an amended motion does not begin to run until the public defender enters an appearance for a pro se movant). However, the amended motion was not filed until September 29, 2014, over a year after the due date. Plainly, the amended motion was not timely filed.

“[W]hen post-conviction counsel is appointed to an indigent movant, an amended motion filed beyond the deadline in Rule 29.15(g) can constitute ‘abandonment’ of the movant.” Moore, 458 S.W.3d at 825. “When an untimely amended motion is filed, the motion court has a duty to undertake an ‘independent inquiry under Luleff to determine if abandonment occurred.” Id. (citing Luleff v. State, 807 S.W.2d 495, 498 (Mo. banc 1991)). If the motion court fails to make this independent inquiry, we are required to remand to the motion court to conduct the inquiry, as a finding that a movant has not been abandoned would require the motion court to adjudicate only the movant’s pro se motion, while a finding that a movant has been abandoned would require the motion court to permit the untimely filing of an amended motion.6 Id. at 825-26; Luleff, 807 S.W.2d at 498; Sanders v. State, 807 S.W.2d 493, 495 (Mo. banc 1991).

During the hearing on the amended motion, post-conviction counsel addressed the timeliness of the amended motion:

Judge, I noted that the Motion in this case—the Amended Motion' in this case I don’t believe was timely filed and I would make the record that pursuant to [Sanders v. State] that none of the— none of that was attributable to -the Movant in this case.

No details were offered by post-conviction counsel to explain the delay in filing the amended motion, or the basis for counsel’s representation that the delay was not attributable to Hougardy. Neither the State nor the motion court responded to post-conviction counsel’s statement, as the topic of discussion immediately turned to an awaited report from a deputy about, a witness who had failed to appear though subpoenaed to testify. The motion court did not conduct an “independent inquiry” to determine the reason for the delay in filing the amended motion.

Even presuming the motion court could have permissibly concluded that the delay in filing the amended motion was not attributable to Hougardy based solely on post-conviction counsel’s representation, the Judgment expressed no findings or conclusions on the. issue of abandonment. Instead, the Judgment found only that the amended motion “was timely filed.” We do not know whether the motion court concluded that Hougardy had been abandoned and deemed the amended motion timely filed as a result, or whether the motion court simply missed the fact that the amended motion was filed more than a year after it was due and failed to consider the issue of abandonment.

*879Appellate review in a Rule 29.15 proceeding “shall be limited to a determination of whether the findings and conclusions of the [motion] court are clearly erroneous.” Rule 29.15(k). The motion court’s finding that the amended motion “was timely filed” is clearly erroneous unless Hougardy was abandoned. Rule 29.15(j) required the motion court to “issue findings of fact and conclusions of law on all issues presented” in the case, including the issue of abandonment. The motion court did not do so. We are not authorized to assume unexpressed findings and conclusions on the issue of abandonment. “If we were to furnish findings of facts and conclusions of law ... we would be engaging in de novo review,” which is not permitted under Rule 29.15(k).7 Muhammad v. State, 320 S.W.3d 727, 729 (Mo. App. E.D. 2010) (citing Grimes v. State, 260 S.W.3d 374, 376 (Mo. App. W.D. 2008); Mitchell v. State, 192 S.W.3d 507, 510 (Mo. App. E.D. 2006)).

We are obligated to remand this matter to the motion court to conduct an inquiry into, and to make findings and conclusions regarding, abandonment. Those findings and conclusions will inform whether the motion court properly considered the claims raised in the amended motion or was limited to reviewing the claims raised in Hougardy’s pro se motion. See Hicks v. State, 514 S.W.3d 118, 120-21 (Mo. App. W.D. 2017).

Because we are remanding for independent inquiry, findings, and conclusions on the issue of abandonment, we will not address the merits of Hougardy’s point on appeal. Id. at 121.

Conclusion

The motion court’s Judgment is reversed. This matter is remanded to the motion court for an independent inquiry into, and findings and conclusions on, the subject of abandonment, and for further proceedings consistent with this opinion.

All concur