er of the owner of the car, the primary insurer and that Plaintiff is thus liable for all the costs of defense. Alternatively, Defendant argues that it fulfilled any duty to defend that it may have been under by hiring co-counsel and ultimately assuming exclusive control of the defense.
The Court holds that in this situation, Plaintiffs policy provides primary coverage and Defendant’s policy excess coverage. Plaintiff, as the primary insurer, has the principal duty to defend the insured, and thus Plaintiff is not entitled to recover from Defendant any of the costs it expended in defending the underlying action.
I. Facts
The following recitation of facts is, unless otherwise indicated, uneontroverted. On February 27, 1987 Suzanne Godfroid filed suit against Deborah Pendleton, alleging that Pendleton’s negligent operation of an automobile caused her to sustain personal injuries. The car driven by Pendleton was owned by Richard N. Mitchell, who was insured by Plaintiff. Pendleton was covered by Plaintiff’s policy because she was driving the insured vehicle. See Joint Stipulations of Facts, Exhibit A. Pendleton was also covered by Defendant’s policy, which was issued to Pendleton’s father, because she was a relative of the policyholder and was driving a nonowned car with the owner’s permission. See Joint Stipulations of Facts, Exhibit B.
Plaintiff’s policy provided liability coverage in limits of $20,000 per person, $40,000 per accident. Defendant’s policy contained a single, aggregate limit of $300,000. Each policy contained an “other insurance” clause that purported to apportion liability and losses in situations where another insurance policy covered the risk.
On April 24, 1987 Plaintiff tendered its $20,000 policy limit to Godfroid, who immediately rejected the settlement offer. At the same time, Plaintiff asked Defendant to assume the defense of Pendleton. Defendant refused to assume exclusive representation of Pendleton, but entered its appearance as co-counsel on May 28, 1987. Defendant assumed the defense of Pendleton exclusively on September 15, 1987. On January 6, 1988, counsel for Defendant and Godfroid settled the underlying suit for $212,500. Plaintiff contributed $20,000, its policy limit, and Defendant paid the remainder, $192,500.
The controversy in the present case concerns the costs of defending the Pendleton suit. Plaintiff expended $19,498.41 in defending the underlying action; Defendant spent $2,199.64 in defending the action after it assumed the exclusive defense of Pendleton. See Joint Stipulations of Fact, ¶ 8. The parties agree that these fees were reasonable and necessary to Pendleton’s defense. Defendant also incurred $5,800.73 in legal expenses while it provided co-counsel to Pendleton. The parties agree that this amount was reasonable for the services rendered and that the services were beneficial to the defense, but Plaintiff argues that those services were not necessary to the defense.
II. Discussion
The Maine Supreme Judicial Court has considered the problem of coincidental insurance coverage on a number of occasions and has developed a body of law governing apportionment of losses and costs of defense.
1 If two policies cover the same risk and each policy has a coincidental insurance clause, the court must resolve a “battle of the clauses.”
See Carriers Insurance Co. v. American Policyholders’ Insurance Co., 404 A.2d 216, 218 (Me. 1979). Where each clause seeks to make the policy “excess” insurance, that is, payable only after all other insurance has been exhausted, the clauses are “disregarded as mutually repugnant thus rendering applicable the general coverage of each policy.”
Id. at 220. Once the excess insurance clauses are disregarded, the insurers must share the loss equally until the limits of the
1
The parties do not dispute that Maine law applies in this diversity action, and the Court is satisfied that it must apply Maine law. See Gates Formed Fibre Products, Inc. v. Plasti-Vac, Inc., 687 F.Supp. 688 (D.Me.1988); Baybutt Construction Corp. v. Commercial Union Insurance Co., 455 A.2d 914 (Me.1983), overruled on oilier grounds, Peerless Insurance Co. v. Brennan, 564 A.2d 383 (Me. 1989).