[1] We first address the threshold question of whether defendant’s motions may be ruled upon by the trial court after plaintiff voluntarily dismissed its claims without prejudice pursuant to Rule 41(a). In Walker Frames v. Shively, 123 N.C. App. 643, 646, 473 S.E.2d 776, 778 (1996), we recognized that, as a general proposition, a Rule 41(a) dismissal “terminate [s] all adversary proceedings in [the] case.” Id. The filing of a voluntary dismissal strips the trial court of its authority to enter further orders in the adversary proceedings, “except as provided by Rule 41(d) which authorizes the court to enter specific orders apportioning and taxing costs.” Id. (citing Fields v. *644 Whitehouse & Sons Co., 98 N.C. App. 395, 397-98, 390 S.E.2d 725, 726-27, disc. review denied, 327 N.C. 427, 395 S.E.2d 676 (1990)).
This broad limitation on the trial, court’s power to enter orders after a voluntary dismissal does not extend so far, however, as to bar the trial court from awarding attorney’s fees pursuant to Rule 11(a) or G.S. 6-21.5 where the plaintiff’s now dismissed action was frivolously filed or maintained in the absence of a justiciable issue. Bryson v. Sullivan, 330 N.C. 644, 664, 412 S.E.2d 327, 338 (1992). In the Rule 41(a) context, we recognize that a motion for attorney’s fees pursuant to Rule 11(a) or G.S. 6-21.5 is not a continuation of adversary proceedings. Id. These motions have a life of their own and they address the propriety of the adversary proceedings that have previously occurred in the case without regard to whether the adversary proceedings in question are continuing when the motion for fees is filed. Id. Accordingly, we conclude that the trial court here could properly consider and rule upon defendant’s motion for attorney’s fees pursuant to Rule 11(a) and G.S. 6-21.5.
[2] We turn now to plaintiff’s argument that the trial court erred in concluding that, plaintiff’s action was not well-grounded in fact, was not legally sufficient, and was interposed for an improper purpose, therefore entitling defendant to reasonable attorney’s fees under Rule 11(a). Plaintiff argues that competent evidence does not support the trial court’s findings and that the findings do not support the court’s award of reasonable attorney’s fees. We disagree.
We review de novo the trial court’s decision to impose or not to impose mandatory sanctions pursuant to G.S. 1A-1, Rule 11 (a). Turner v. Duke University, 325 N.C. 152, 165, 381 S.E.2d 706, 714 (1989).
In the de novo review, the appellate court will determine (1) whether the trial court’s conclusions of law support its judgment or determination, (2) whether the trial court’s conclusions of law are supported by its findings of fact, and (3) whether the findings of fact are supported by a sufficiency of the evidence. If the appellate court makes these three determinations in the affirmative, it must uphold the trial court’s decision to impose or deny the imposition of mandatory sanctions under N.C.G.S. § 1A-1, Rule 11(a).
Id. If we determine in our de novo review that sanctions were properly imposed by the trial court, we then review under an “abuse of *645discretion” standard the appropriateness of the particular sanction imposed. Id.
Here, the plaintiff challenges the following findings of fact made by the trial court:
5. Plaintiffs Distribution Director knew, at the time the Complaint was filed, that the statements in Defendant’s advertisements and correspondence [complaint Exhibits A, B and C] were true, or at least, did not understate the actual circulation of Plaintiff’s “Apartment Finder” magazine. The statements contained in Defendant’s advertisements and correspondence were consistent with the figures for pricing and circulation as publicly stated by Plaintiff.... Plaintiff’s Distribution Director communicated to Plaintiff’s President, Walt Fletcher, that the number of Plaintiff’s Apartment Finder magazines printed for both the monthly and quarterly publications were not actually being placed in circulation. Additionally, the number of Plaintiff’s Apartment Finder magazines, for both the monthly and quarterly publications, were not consistently being printed at the volume Plaintiff quoted to its advertisers.
6. Plaintiff’s President, Walt Fletcher, was told by his Distribution Director, and knew, or should have known (based on print orders placed by Plaintiff and printing invoices received by Plaintiff), at the time of filing the Complaint, and at the time of filing the Amended Complaint, that the allegations contained therein as to Plaintiff’s circulation and pricing were false, frivolous, and without foundation or good faith basis in fact. Plaintiff’s President, Walt Fletcher, believed that the filing of the Complaint would cause advertisers (actual or prospective clients of both Plaintiff and Defendant) to doubt the veracity of Defendant’s advertisements, merely by virtue of the fact that a lawsuit had been filed, and intended to use this lawsuit in order to damage Defendant with regard to its relationship to advertisers.
7. The Plaintiff’s publishing bills and the testimony of Plaintiff’s former Distribution Director, Rich F. Good, unequivocally show that the size of Plaintiff’s “Apartment Finder’s” circulation was not 120,000 booklets for the Triangle area. The actual circulation of Plaintiff’s “Apartment Finder” magazine (combining the quarterly and monthly publications) did not exceed the amounts represented by Defendant in its advertisements and *646correspondence, and Defendant’s pricing comparisons were accurate.
These findings are sufficiently supported in the record by advertising documents submitted by plaintiff as exhibits to plaintiff’s amended complaint and by plaintiff’s print invoices from the months immediately prior to plaintiff’s filing of its complaint. We note here that we find adequate and independent support for the relevant findings by the trial court without considering the deposition of Rich F. Good. Accordingly we need not address whether the trial court could properly consider the deposition of Mr. Good in ruling upon defendant’s motion for sanctions.
We also conclude that the trial court’s findings of fact are sufficient to support its conclusion that “[p]laintiff’s action was not well-grounded in fact, was not legally sufficient, and was interposed for an improper purpose ... in violation of N.C. Gen. Stat. § 1A-1, Rule 11 . . . .” Based on this conclusion, some measure of sanction is mandatory under Rule 11(a). Here, the trial court acted within its discretion in awarding reasonable attorney’s fees as an appropriate sanction.
As to the amount of fees awarded, the trial court “considered the skill, time and labor expended as well as the complexity of the case.” Northampton County Drainage Dist. Number One v. Bailey, 326 N.C. 742, 751, 392 S.E.2d 352, 358 (1990). The trial court’s order here includes the appropriate findings of fact supported by competent evidence as to the “skill, time and labor expended as well as the complexity of the case.” Id. Accordingly, we conclude that the trial court did not err in its award of attorney’s fees here pursuant to Rule 11(a).
Having upheld the trial court’s award of attorney’s fees pursuant to Rule 11(a) in the full amount awarded, we need not address plaintiff’s argument that the trial court erred in concluding G.S. 6-21.5 provides an adequate and independent basis for the award of attorney’s fees here.
Defendant also argues here that the trial court erred in denying plaintiff’s Rule 60(b) motion. We disagree. The standard of review on this issue is abuse of discretion. Based upon our review of the record here, we conclude that the trial court acted within its discretion in denying plaintiff’s motion pursuant to Rule 60(b). E.g., Sink v. Easter, 288 N.C. 183, 198, 217 S.E.2d 532, 541 (1975). We have exam*647ined plaintiff’s remaining assignments of error and conclude them to be without merit.
Affirmed.
Judges MARTIN, JOHN C., and SMITH concur.