This diversity medical malpractice insurance ease has spanned twelve years and involved the participation of twenty-seven judges. It is now before us for the second time. The issues presented on appeal are: (1) whether a Chapter 7 bankruptcy trustee can assert a bad faith claim against an insurer when the underlying cause of action accrued after the named insured was discharged in bankruptcy; (2) if such a claim is found to be cognizable, what is the measure *1061 of recovery; and (3) whether the bankruptcy trustee is entitled to prejudgment interest. The district court ruled that the trustee can assert such a claim, the measure of recovery is the amount of the judgment in excess of policy limits, and the trustee is not entitled to prejudgment interest. We AFFIRM in part, REVERSE in part, and REMAND for further proceedings consistent with this opinion.
I. BACKGROUND
The general factual background for this case is described in detail in
Camp v. St. Paul Fire and Marine Ins. Co.,
Camp and Kimbell’s bankruptcy trustee, John E. Venn (“Venn” or “trustee”), next commenced a bad faith action against St. Paul in Florida state court. St. Paul removed the ease to the United States District. Court for the Northern District of Florida. On cross-motions for summary judgment, the district court dismissed the ease and held that St. Paul could not be liable for bad faith refusal to settle because its insured — Kim-bell — was bankrupt and could not be held personally liable for the excess judgment. On appeal, we certified the following question to the Florida Supreme Court:
Whether, as a matter of law, a named insured’s bankruptcy and discharge from liability prior to exposure to an excess judgment, such that the named insured was never personally liable for any amount of the judgment, precludes an injured party’s or bankruptcy trustee’s subsequent bad faith cause of action against an insurance company.
Camp I,
Accordingly, we reversed the district court’s dismissal of Venn’s bad faith action and affirmed the dismissal of Camp’s action.
Camp v. St. Paul Fire and Marine Ins. Co.,
St. Paul appeals the denial of its post-trial motions. Venn cross-appeals on the grounds that the court erred in concluding that Venn is not entitled to prejudgment interest and in granting St. Paul judgment as a matter of law on the issue of punitive damages. Based on our independent review of the record, we conclude that Venn’s challenge to the court’s ruling with respect to punitive damages is meritless. Accordingly, we affirm the judgment of the district court as to that issue. The remaining issues raised in these consolidated appeals are discussed below.
II. DISCUSSION
A. St. Paul’s Post-Trial Motions
St. Paul raises numerous contentions on appeal. Two of these contentions warrant some discussion.
4
First, St. Paul asserts that the district court should not have applied the
Camp II
decision of the Florida Supreme Court to this case because it is based on an erroneous interpretation of federal bankruptcy law. Second, St. Paul submits that the district court erred further by misinterpreting the Florida Supreme Court’s holding in
Camp II.
St. Paul’s contentions raise questions of both federal and state law. “The district court’s eonclusion[s] of [federal] law [are] subject to complete and independent review by this court.”
In re Sure-Snap Corp.,
1. The Camp II Decision
The district court correctly rejected St. Paul’s invitation not to follow the Florida Supreme Court’s
Camp II
decision. The district court was required to do so for two reasons. First, the court was acting under our mandate to conduct “further proceedings consistent with this opinion
and that of the Florida •Supreme Court.” Camp III,
A district court when acting under an appellate court’s mandate, “cannot vary it, or examine it for any other purpose than execution; or give any other or further relief; or review it, even for apparent error, upon a matter decided on appeal; or intermeddle ... further than to settle so much as has been remanded.”
Litman v. Massachusetts Mut. Life Ins. Co.,
St. Paul argues, however, that
we
should revisit the
Camp
decisions because the Florida Supreme Court misinterpreted federal bankruptcy law by reasoning that KimbelTs potential bad faith claim became a part of his estate by operation of 11 U.S.C. § 541(a)(1).
6
See Camp II,
The first two exceptions are not applicable here. St. Paul contends, however, that our decision in
Camp III
mandating adherence to the ‘ Florida Supreme Court’s decision in
Camp II
was clearly erroneous. Citing
Sun Insurance Office, Ltd. v. Clay,
St. Paul’s reading of Clay, however, evinces a misunderstanding of our holding in that case. The issue in Clay was whether a Florida statute that invalidates an insurance suit clause 8 applies to a policy issued in Illinois. The policy holder had moved to Florida after the policy was issued and later brought a diversity action on a property loss that occurred in Florida. The insurer sought to have the claim dismissed on the basis of the'policy suit clause. The resolution of the case depended on the court’s answer to three questions: Whether, as a matter of Florida law, (1) the Florida statute is intended to apply to a policy issued outside Florida and (2) the particular losses at issue are covered by the policy; and whether, as a matter of federal law, (3) the Florida statute could be applied to the policy consistent with the Due Process Clause of the United States Constitution. See id. at 507. After determining that the federal constitutional issue could be *1064 avoided if either state law question was answered in the negative, we certified the two state law questions to the Florida Supreme Court. 9 The Florida Supreme Court answered both questions in the affirmative, thus necessitating our consideration of the federal constitutional question. However, in the course of passing on the state law questions, the Florida Supreme Court also purported to answer the federal question. In our post-certification review of the remaining federal question, we held that the Florida Supreme Court’s interpretation of federal law does not bind us. Id. at 509.
This case is fundamentally different from
Clay.
Although we have said that “[t]his diversity ease involves the intersection of insurance bad faith law and bankruptcy law,”
Camp I,
We conclude that our decision in Camp III is the law of this case, which binds us and the district court. More importantly, we also conclude that the Florida Supreme Court’s Camp II decision is an expression of state law and it, therefore, must be followed by us as well as future federal courts sitting in diversity cases, unless either the Florida Supreme Court or legislature changes the law.
2. Interpretation of Camp II
St. Paul’s second contention is that the district court misinterpreted the Camp II decision. St. Paul argues that the Florida Supreme Court in Camp II changed the identity of the insured by holding that the bankruptcy estate became the insured under the policy and, thus, St. Paul owed a duty of good faith only to the estate, not to Kimbell. Under this interpretation of Camp II, St. Paul’s pre-bankruptcy conduct in handling Kimbell’s defense is not relevant to Venn’s bad faith action' and the introduction of evidence as to such conduct at trial would have been erroneous.
The Florida Supreme Court described an insured’s action against its insurer for failure to settle a third party’s claim in good faith as follows:
An insurer who assumes the defense of the insured also assumes a duty to act in good faith and with due regard to the interests of the insured. Boston Old Colony Ins. Co. v. Gutierrez,386 So.2d 783 (Fla.1980). More specifically, in actions by third parties against the insured, the insurer must act in good faith and be diligent in *1065 its effort to negotiate a settlement. Auto Mutual Indemnity Co. v. Shaw,134 Fla. 815 ,184 So. 852 (1938). The insurer breaches its duty if it fails to act in good’ faith and the third party obtains a judgment against the insured for an amount in excess of the policy coverage. Id.
Camp II,
Moreover, the Florida Supreme Court stated in Camp II that “[t]he bankruptcy estate stood in the shoes of the debtor and, in effect, the estate became the insured.” Id. (emphasis added). We do not read this to signify that Kimbell was no longer the “insured” and that St. Paul’s prebankruptcy conduct became wholly irrelevant to Venn’s action. Rather, this language leads to the conclusion that, when Kimbell filed for bankruptcy, the estate not only took title to his contingent claim but also succeeded to his contract rights under the insurance policy. Indeed, the court said as much when it stated: “[I]n the instant case, the bankruptcy estate holds Dr. Kimbell’s insurance policy as an asset.” Id. Thus, St. Paul also owed a duty of good faith towards the bankruptcy estate (after it came into existence) and its post-bankruptcy conduct with respect to the Camp claim is relevant.
In short, an insurer owes under Florida law a continuous duty to negotiate and settle in good faith a third party claim against its insured. This duty arises from the moment the insurer assumes the insured’s defense and matures into a cause of action when the third party obtains a final judgment in excess of policy limits.
See Romano v. American Casualty Co.,
St. Paul contends further that the district court erred-in fixing the amount of damages to be the entire excess judgment obtained by Camp. St. Paul argues that the damages recoverable by Venn should be limited . to the “harm” caused by the excess judgment. The Florida Supreme Court reasoned in
Camp II
that “[t]he excess judgment against Dr. Kimbell harmed his bankruptcy estate by increasing the debt of the estate to the detriment of its creditors.”
St. Paul’s argument overlooks the unambiguous language of the Florida Supreme Court’s decision in this case:.
The estate was damaged by the addition of Mrs. Camp as an additional unsecured creditor, a result that could have been avoided if St. Paul had settled her claim. As the trustee of the bankruptcy estate, Mr. Venn acted properly in filing a bad faith action to recoup the excess judgment for which the estate remains liable.
Camp II,
B. Prejudgment Interest
Whether a successful claimant is entitled to prejudgment interest is a question of state law.
Royster Co. v. Union Carbide Corp.,
Venn contends that there is clear Florida precedent mandating the award of prejudgment interest to the claimant in an action for insurer failure to settle in good faith. Venn cites three cases for this proposition:
Auto Mutual Indemnity Co. v. Shaw,
In
Shaw,
the injured party who had prevailed against the insured filed suit seeking to recover the entire judgment from the insurer. The complaint alleged two counts, the first for damages up to the policy limit as a third-party beneficiary under a theory of contract law and the second for the excess judgment on a theory of insurer bad faith.
Shaw,
In
Davis,
the former Fifth Circuit squarely held that a bad faith claimant is entitled to prejudgment interest on the authority of
Shaw. Davis,
*1067
Prior to 1985, “[w]hat the Florida law is on prejudgment interest [was] far, from clear.”
Royster Co.,
Several years later, in the context of tort law, the Florida Supreme Court held that “a claimant in a personal injury action is only entitled to prejudgment interest on past medical expenses when the trial court finds that the claimant has made
actual, out-of-pocket payments
on those medical bills at a date prior to the entry of judgment.”
Alvarado v. Rice,
Venn correctly notes, however, that a recent decision by the Florida Supreme Court reveals that both the district court and the
Ruden
Florida court were incorrect. In
Lumbermens Mutual Casualty Co. v. Percefull,
Venn has asserted a bad faith action against St. Paul for its failure to settle Camp’s claim. Because such action sounds in contract under Florida law,
Grounds,
III. CONCLUSION
In these appeals, St. Paul challenges the denial of its motions for judgment as a matter of law or, in the alternative, for a new trial or to alter or amend the judgment. Venn cross-appeals, arguing that the district court erred in ruling that Venn was not entitled to prejudgment interest and granting St. Paul’s motion for judgment as a matter of law on the issue of punitive damages. Oür review of applicable Florida law and the record establishes that the district court did not err in either denying St. Paul’s post-trial motions on liability or granting St. Paul’s motion on punitive damages. We conclude, however, that Venn is entitled to prejudgment interest. Accordingly, we AFFIRM in part, REVERSE in part, and REMAND with instructions to amend the judgment for the purpose of awarding Venn prejudgment interest.
Notes
. A second question certified to the Florida Supreme Court involved the construction of particular policy language and is not repeated here.
See Camp I,
. As of June 1994, the prejudgment interest on the excess judgment amounted to $2.4 million (simple interest) or to more than $3.3 million if compounded annually.
Venn I,
. The parties had agreed in the pretrial conference to bifurcate the trial and that the issue of punitive damages would not be submitted to the jury until after it returned a verdict on liability. R-6-217-2.
. St. Paul argues that there was insufficient evidence introduced at trial to prove that it acted in bad faith and that a new trial should have been granted because the district court made several erroneous evidentiary rulings and refused to give five jury instructions requested by St. Paul. We reject these contentions for the reasons set forth in the district court’s opinion.
See Venn II,
.The district court recognized its duty to follow our mandate, but it sharply criticized the Florida Supreme Court's Camp II decision. Camp II was decided pursuant to a certification from this court asking the Supreme Court of Florida to advise this court on an unsettled question of state law. When a state court responds to a request *1063 for a determination of an unsettled question of state law, and the federal court receives an answer, it is hardly appropriate for a federal court to question the correctness of the answer.
. 11 U.S.C. § 541(a)(1) provides that a bankruptcy estate includes "all legal or equitable interests of the debtor in property as of the commencement of the case.”
. We have adopted the decisions of the United States Court of Appeals for the Fifth Circuit decided prior to October 1, 1981, as binding precedent of the Eleventh Circuit.
Bonner v. City of Prichard,
.The insurance suit clause at issue in
Clay
provided that any action against the insurer under the policy must be commenced within six months after the discovery of a loss. Such clause, the purpose of which is effectively to shorten the statute of limitations, was valid in Illinois, but not valid in Florida.
. We did so under mandate of the United States Supreme Court.
See Clay,
. Although we need not evaluate in detail the Florida Supreme Court’s interpretation of federal bankruptcy law, we note that it is not necessarily inconsistent with our circuit precedent. Section 541(a)(1) provides that interest in property held hy a debtor at the time of bankruptcy becomes part of the estate. 11 U.S.C. § 541(a)(1). We consider causes of action which have already accrued prior to bankruptcy as such property.
See Jones v. Harrell,
. Our conclusion is supported by the fact that the Davis court discussed the issue of prejudgment interest in a short paragraph, only citing Shaw as support. Although we conclude that Davis does not control our decision in this case, we nonetheless are troubled by the district court's failure to either mention Davis or analyze the extent to which it constitutes binding law in our circuit.
In
General Accident,
the Florida district court of appeals awarded prejudgment interest to an excess carrier who sued the insured's primary carrier for failure to settle within the primary policy limits.
. St. Paul argues that the tort-contract dichotomy should not be dispositive of this case and reminds us that we have previously stated that this "dichotomy cannot easily or rationally be extended to actions for refusal to settle.”
Davis,
. Among the myriad arguments presented by St. Paul on the issue of prejudgment interest, St. Paul once again argues that Venn’s special status as a bankruptcy trustee takes this case out of the general Florida rules governing prejudgment interest in contract actions. This argument is foreclosed by the Florida Supreme Court's decision that "[t]he bankruptcy estate st[ands] in the shoes of the debtor.”
Camp II,
. The interest rate is specified in Fl.Stat. ch. 687.01 (1995).
