The ten-year-old dispute involved in this appeal has previously been before this Court, the Court of Appeals (twice), two circuit courts of this State, and one federal court.
The litigation began when appellee, Washington Suburban Sanitary Commission, instituted in the Circuit Court for Montgomery County a declaratory judgment action against several property owners, including appellant, Pharmaceia ENI Diagnostics, Inc. Instead of filing a counterclaim, appellant chose to pursue separate actions against appellee, which thereafter filed a dismissal of appellant from the declaratory judgment action. Unable to obtain relief in its separate actions, appellant attempted to file a counterclaim in the declaratory judgment action. Upon motion by appellee, the Circuit Court for Montgomery County (Weinstein, J.) struck appellant's counterclaim on the ground that appellant was no longer a party to the action. Appellant thereupon filed a motion to intervene, which was denied. It is from those rulings that this appeal was taken.
Perceiving no reversible error, we shall affirm.
Facts
Appellant operates a biological laboratory for the performance of medical testing and the manufacturing of medical products. The laboratory is situated on Lot No. 6 of the Montgomery Industrial Park in Montgomery County, Maryland. Lot No. 6 is adjacent to a tract of land known as “Site 2” and, along with other lots in Montgomery Industrial Park, is benefited by restrictive covenants prohibiting the accumulation of waste material or refuse on, and the emission of objectionable odors from, Site 2. In July, 1980, appellee acquired Site 2 in condemnation proceedings; in November of that year it instituted its declaratory judgment action (hereinafter referred to as the Frankel case) seeking a declaration that the covenants on Site 2 were not *559 property interests for which it had to compensate the beneficiaries of the covenants. All of the property owners benefiting by the covenants, including appellant, were named as defendants. Most of the defendants filed counterclaims; appellant did not.
In December, 1982, the Circuit Court for Montgomery County (Mitchell, J.) held that the restrictive covenants were compensable property interests. We affirmed that ruling in
Washington Suburban Sanitary Commission v. Frankel,
Seeking compensation for the taking of its property, but opting not to do so by filing a counterclaim in the Frankel case, appellant filed a separate “inverse condemnation” action (Electro-Nucleonics v. Washington Suburban Sanitary Commission) in March, 1986. On 27 June 1987, appellee filed an amended complaint in the Frankel case, which appellant did not answer, and in December of that year appellee filed a notice dismissing appellant from that case. Appellant did not object to the dismissal, nor did it assert any right to remain in the case.
In the
Electro-Nucleonics
action, the Circuit Court for Montgomery County (Cave, J.) granted summary judgment to appellee, finding that the suit was filed more than three years after appellee acquired title to Site 2 and was thus barred by limitations. That judgment was appealed, but prior to our review of the decision, the Court of Appeals
*560
granted
certiorari,
and on 13 March 1989, it affirmed the granting of summary judgment.
Electro-Nucleonics v. Washington Suburban Sanitary Commission,
Having failed to obtain relief in two separate actions, appellant, on 20 September 1989, sought to reactivate its status as a party to the Frankel case by filing therein a counterclaim against appellee. The trial court granted appellee’s motion to strike the counterclaim on 7 March 1990, ruling that appellant had been dismissed from the suit and was thus barred from filing a counterclaim. Promptly thereafter, on 23 March 1990, appellant filed a motion to intervene in the declaratory judgment case. Appellant claimed that it had a right to intervene; in the alternative, it sought permission to intervene. The circuit court, however, denied the motion, without explanation, on 19 April 1990.
In this appeal, appellant contends that it was never properly dismissed from the Frankel case, notwithstanding its admission to the Court of Appeals to the contrary, because it had filed an answer to the original complaint on 3 March 1981, well in advance of the December 1987 Notice of Dismissal, and never stipulated to the dismissal. Therefore, appellant argues, it was not dismissed in accordance with Md. Rule 2-506(a). Further, appellant contends that since appellee failed to file a motion for voluntary dismissal before appellant’s counterclaim was filed, there was no dismissal in accordance with Md. Rule 2-506(b). Alternatively, appellant argues that even if it had been properly dismissed, the trial court erred in denying its motion to intervene.
*561 I
Md. Rule 2-331(a) provides, in pertinent part, that “[a] party may assert as a counterclaim any claim that party has against any opposing party, whether or not arising out of the transaction or occurrence that is the subject matter of the opposing party’s claim.” An obvious predicate to the proper filing of a counterclaim, therefore, is that the counterclaimant be a party to the action. The trial court based its decision to strike appellant’s counterclaim on its determination that appellant had consented to appellee’s Notice of Dismissal and was, consequently, no longer a party to the declaratory judgment case. From the Order and Opinion of 7 March 1990, it is apparent that the trial court inferred appellant’s consent to the dismissal from its decision to commence a separate suit against appellee, its failure to object to the notice of dismissal, its lack of participation in the Frankel case after receiving the notice, and its admission to the Court of Appeals in Electro-Nucleonics that it had been dismissed from the Frankel case. The trial court further considered the prejudice to appellee of requiring it to relitigate the issues presented in the counterclaim after having defended itself in two prior cases instituted by appellant and involving the same issues.
Md. Rule 2-331(d) provides:
If a party files a counterclaim or cross-claim more than 30 days after the time for filing that party’s answer, any other party may object to the late filing by a motion to strike filed within 15 days of service of the counterclaim or cross-claim____ The court shall grant the motion to strike unless there is a showing that the delay does not prejudice other parties to the action. (Emphasis added.)
Appellant failed to file a counterclaim for more than eight years after the filing of its answer. Consequently, even if appellant were still a party to the
Frankel
case when it filed the counterclaim, the court would have been entirely justified in striking out the counterclaim in the absence of any showing that allowing the pleading would not prejudice
*562
other parties. Appellant clearly failed to make such a showing, and the trial court noted in its opinion and order striking the counterclaim that, “[a]fter putting [appellee] to the time and expense of defending itself in those [prior] suits, it would be unfair to permit [appellant] to relitigate the issues in the form of this counterclaim.” If the allowance of the counterclaim were a matter of discretion
(i.e.,
if appellant were still a party), the scope of our review of the decision to grant or deny a counterclaim would be limited to determining whether the court abused its discretion.
Faulkner v. Town of Chestertown,
The primary basis for the court’s ruling, however, was its determination that appellant had been dismissed from the case. Appellant argues that the Notice of Dismissal was ineffective because it had filed its answer to the complaint many years before the Notice was filed. Md. Rule 2-506 provides:
(a) Except as otherwise provided in these rules or by statute, a plaintiff may dismiss an action without leave of court (1) by filing a notice of dismissal at any time before the adverse party files an answer or a motion for summary judgment or (2) by filing a stipulation of dismissal signed by all parties who have appeared in the action. (b) Except as provided in section (a) of this Rule, a plaintiff may dismiss an action only by order of court and upon such terms and conditions as the court deems proper. If a counterclaim has been pleaded prior to the filing of plaintiff’s motion for voluntary dismissal, the action shall not be dismissed over the objection of the party who pleaded the counterclaim unless the counterclaim can remain pending for independent adjudication by the court.
*563 Although no stipulation or order of dismissal was filed, appellant’s conduct subsequent to receiving the Notice of Dismissal justifies the trial court’s inference of consent.
Appellee is clearly wrong in arguing that since the Notice of Dismissal was filed after its amended complaint was filed and before any parties responded to the amended complaint, the notice effected a voluntary dismissal in accordance with Rule 2-506(a). Appellee relies on
Keesling v. State,
Nevertheless, appellant failed to object to the Notice of Dismissal or assert its right to remain in the Frankel case. Indeed, appellant did not participate in Frankel in any capacity after receiving the Notice but chose to pursue its own action against appellee, in which it admitted to the Court of Appeals that it had been dismissed from Frankel. Appellant effectively admitted its error in not objecting to the Notice of Dismissal when arguing before the trial court *564 that its counterclaim should be allowed. Counsel for appellant observed, “We are really arguing whether we should be dismissed or not, which is probably what should have been argued two years ago when they filed their motion to dismiss____” Appellant argued to the trial court that it never believed that it had been dismissed from the Frankel case, but failed to offer any explanation for its acquiescence. Moreover, when the trial court , asked appellant’s counsel whether the Court of Appeals was aware at the time of argument in Electro-Nucleonics that appellant had been dismissed from the Frankel case, he responded, “I had stated that, Your Honor, yes.” Appellant argues that it was mistaken in its admission to the Court of Appeals; however, appellant had a significant period of time prior to its admission in the Court of Appeals during which to evaluate the Notice and articulate any objection.
The trial court found that appellant’s conduct demonstrated its consent to the dismissal. The court stated:
This Court finds that ENI is barred from filing a counterclaim in this case because it is no longer a party to the suit. WSSC dismissed ENI from this case before ENI filed the counterclaim. It is clear by ENI’s actions that it consented to the dismissal. First, ENI chose to pursue two separate actions against WSSC. And secondly, ENI admitted to the Court of Appeals that it was dismissed from this case.
Furthermore, ENI made the voluntary decision to pursue its own case. After putting WSSC to the time and expense of defending itself in those suits, it would be unfair to permit the defendant to relitigate the issues in the form of this counterclaim.
We cannot hold that this conclusion is clearly erroneous, especially in view of appellant’s admission to the Court of Appeals and that Court’s reliance on that admission. 1
*565
Although there was neither a formal Order of Dismissal nor a signed stipulation of dismissal filed, such papers are, under the circumstances of this case, unnecessary in light of appellant’s conduct demonstrating its consent to the dismissal. In
Oroian v. Allstate Ins. Co.,
II
Shortly after the trial court struck the counterclaim, appellant filed a motion to intervene as of right and with permission, pursuant to Md. Rule 2-214. Appellant argues that the trial court’s denial of this motion constituted re
*566
versible error. We disagree. In support of its contention that it had a right to intervene, appellant refers to the holding of the Court of Appeals in
Frankel, supra,
The counterclaimants in Frankel could have awaited the final declaratory decree and, if it were adverse to WSSC, could have then sought just compensation in the declaratory judgment action or commenced separate actions for relief based on that judgment.
These statements, appellant argues, establish its right as a property owner benefited by the restrictive covenants on Site 2 to intervene in the Frankel case. We believe, however, that the Court of Appeals was simply outlining the options available to the defendants in the Frankel case of either filing a counterclaim or instituting a separate action for relief. Appellant chose the latter option and, as we have discussed supra, was subsequently dismissed from the declaratory judgment action. The failure to obtain relief in a separate suit does not bestow upon appellant the right to try again by intervening in the same case from which it was previously dismissed.
In
Hartford Ins. Co. v. Birdsong,
(1) the application for intervention must be timely;
(2) the applicant must have an interest in the subject matter of the action;
(3) disposition of the action would at least potentially impair the applicant’s ability to protect its interest; and
(4) the applicant’s interest must be inadequately represented by existing parties.
*567
The Court of Appeals, in
Maryland Radiological Society, Inc. v. Health Services Cost Review Commission,
Whether intervention be asked of right or permissibly, it is manifest from the inaugural words of both sections a and b of Rule 208 [now Rule 2-214] that timely application is a prerequisite to such a request being granted. Thus before proceeding to consider the substantive merits of an intervention motion, a trial court should require that the applicant demonstrate the promptness of his request. Whether it is shown is dependent upon the individual circumstances of each case and rests in the sound discretion of the trial court, which, unless abused, will not be disturbed on appellate review. 2
See also Sornberger v. Chesapeake & Ohio Railway Co.,
*568
Appellant relies on the fact that the trial court did not explicitly state that the motion to intervene was filed untimely in arguing that the motion was timely filed. We noted, however, in
Ellerin v. Fairfax Savings Association,
[T]he question of timeliness depends on the individual circumstances of each case; it is a determination which rests within the sound discretion of the trial court. It is not essential that the record reflect the extent, if any, on which the trial court based its decision on timeliness. (Citation omitted.)
Therefore, the fact that the trial court did not state its reasons for denying appellant’s motion to intervene does not imply that the court considered the motion timely, as appellant suggests.
In determining whether a motion to intervene has been timely filed, a court must consider the purpose for which intervention is sought, the probability of prejudice to the parties already in the case, the extent to which the proceedings have progressed when the movant applies to intervene, and the reason or reasons for the delay in seeking intervention.
Maryland Radiological Society, supra,
Considering the merits of the motion to intervene, as if it had been timely filed, we would find no abuse of discretion in denying it. The rejected counterclaim consisted of four counts. The first count, which sought compensation for inverse condemnation, was held by the Court of Appeals to be barred by limitations.
Electro-Nucleonics, supra,
Appellee correctly notes, however, that appellant’s nuisance claim is inherently different from those of the counterclaimants in that appellant alleges that it may be prevented from continuing any operation on its property. All of the other covenant beneficiaries, counterclaiming in the Frankel case, merely alleged that the nuisance decreases the value of their properties. Allowing appellant to intervene in Frankel would probably result in considerable further discovery and delay merely to give appellant an opportunity to present a counterclaim that it had previously chosen to forego when it initiated a separate action.
Since we perceive no error or abuse of discretion either in the striking of appellant’s counterclaim or denial of its motion to intervene, we shall affirm the judgment of the circuit court.
JUDGMENT AFFIRMED.
COSTS TO BE PAID BY APPELLANT.
Notes
. In
Electro-Nucleonics v. Washington Suburban Sanitary Commission,
Thus, we are not presented with a case involving ‘[t]he rule precluding a declaratory judgment to resolve an issue when there is pending another action in which the same issue can properly be resolved [ — a rule which] is neither jurisdictional nor absolute.’ Haynie v. Gold Bond Bldg. Prods.,306 Md. 644 , 652,511 A.2d 40 , 44 (1986). More generally see Dugan v. Howard,130 Md. 114 , 116-17,99 A. 966 , 967 (1917).
. This “abuse of discretion” standard for appellate review of a trial court’s denial of a motion to intervene was adopted by the Court of Appeals in
Montgomery County v. Ian Corp.,
