SUM game changer

Supplementary Uninsured/Underinsured Motorist (SUM) coverage represents a critical backstop for New York motor vehicle accident victims when at-fault parties carry insufficient insurance. For decades, the insurance industry operated under a well-established framework where SUM benefits functioned as an absolute ceiling—claimants could never recover more than their policy’s SUM limit regardless of third-party settlements or verdicts. The Second Department’s decision in Matter of Government Employees Insurance Co. v Sherlock fundamentally disrupted this longstanding understanding, creating significant new recovery opportunities for injured parties while exposing insurers to substantially greater liability exposure.

The offset provisions governing SUM claims have always presented complex calculation challenges, particularly in multi-party accident scenarios. Under New York’s Insurance Law § 3420(f)(2), SUM carriers receive condition 6 offsets for benefits paid by at-fault motorists’ insurance companies. However, the treatment of payments from non-motor vehicle tortfeasors—municipalities for roadway defects, property owners for dangerous conditions, or other non-vehicular defendants—occupied a legal gray area that courts had not definitively resolved. The Sherlock decision addressed this crucial gap, establishing a dual framework that treats motor vehicle and non-motor vehicle tortfeasor payments fundamentally differently for offset calculation purposes.

This ruling carries profound implications for personal injury practitioners handling motor vehicle accidents involving multiple liable parties. Attorneys representing claimants immediately recognized the decision’s value in cases where municipal negligence, pedestrian conduct, defective products, or other non-vehicular factors contributed to crashes. Conversely, insurance carriers faced the prospect of substantially increased exposure in cases they previously considered straightforward based on policy limits.

Case Background

The Sherlock arbitration arose from a motor vehicle accident involving multiple tortfeasors, including at least one non-motor vehicle defendant. The insurance carrier sought to apply traditional offset principles uniformly to all third-party payments received by the claimant, arguing that SUM benefits should be reduced dollar-for-dollar by any compensation obtained from any liable party regardless of that party’s classification. This position aligned with insurers’ historical interpretation that SUM coverage established a maximum recovery ceiling that could never be exceeded through the combination of third-party payments and SUM benefits.

The arbitration panel rejected the carrier’s broad offset interpretation, distinguishing between payments from motor vehicle tortfeasors and those from non-motor vehicle sources. Government Employees Insurance Company challenged this determination, arguing it violated fundamental insurance principles and exposed carriers to liability beyond their contractually assumed risk. The appellate court’s analysis required careful examination of New York’s Insurance Law offset provisions and their underlying policy rationales.

Matter of Government Empls. Ins. Co. v Sherlock, 2016 NY Slip Op 04414 (2d Dept. 2016)

For those of you who practice in the UM and SUM arenas, this case is a total game changer. I am grateful my name is not attached to the insurance carrier on this case. I believe I would go into hiding or get lost on a long trial. Conversely, when I put my Plaintiff hat on, I realized that I just stepped into a pile of gold.

Here’s my summary:

(1) SUM carrier still gets condition 6 offset based upon benefits paid by third-party motor vehicle insurance tortfeasor carrier;

(2) SUM carrier does not get direct offset for benefits that a non-motor vehicle insurance carrier pays. Rather, the gross award at arbitration is reduced by the amount of third party benefits collected and the Claimant is entitled to the lesser of this amount or the net SUM benefit available.

Essentially, the Court has stripped away the concept that SUM is a ceiling and that it is not permissible to obtain benefits greater than that ceiling. This is a big decision for Claimants who obtain settlements and verdicts in MVAs from tortfeasors other than motor vehicles.

Consider the motor vehicle accident that is caused by the City’ negligence in maintaining the roadway; the errant cow that escaped pasture; the stray bullet that hits your car, etc.

Legal Significance

The Sherlock decision fundamentally recharacterized SUM coverage from an absolute ceiling to a more nuanced benefit calculation mechanism. Under the court’s framework, SUM carriers retain their condition 6 offset rights for payments from motor vehicle tortfeasors, preventing double recovery from vehicular insurance sources. However, payments from non-motor vehicle defendants—municipalities, property owners, product manufacturers, or any other non-vehicular tortfeasor—do not provide direct offsets against SUM benefits. Instead, these non-vehicular settlements reduce the gross arbitration award, with claimants entitled to receive the lesser of this reduced amount or their available net SUM benefits.

This distinction creates scenarios where claimants may recover total compensation exceeding their SUM policy limits. For example, a claimant with $100,000 in SUM coverage who suffers $250,000 in damages might previously have recovered only $100,000 total from combined sources. Under Sherlock, if that claimant settles with a municipality for $150,000 and obtains a $100,000 arbitration award, the calculation changes dramatically. The arbitration award reduces to zero after the municipal offset, but the claimant retains the full $150,000 municipal settlement plus potential SUM benefits calculated under the new methodology, potentially exceeding the nominal SUM policy ceiling.

The ruling reflects sound policy considerations distinguishing motor vehicle insurance pools from general tortfeasor liability. SUM coverage exists specifically to address gaps in motor vehicle insurance, not to subsidize non-vehicular tortfeasors’ liability or create windfalls for their insurers. When municipalities or other non-motor vehicle defendants pay settlements, those payments should not reduce claimants’ contractually purchased motor vehicle insurance protection.

Practical Implications

Personal injury attorneys representing motor vehicle accident victims should immediately reassess case valuations where non-motor vehicle tortfeasors share liability. Roadway defect cases involving municipal defendants, accidents caused by defective traffic control devices, crashes resulting from negligent property maintenance affecting roadways, and similar multi-defendant scenarios all present enhanced recovery potential under Sherlock. Strategic settlement sequencing becomes crucial—resolving non-motor vehicle claims before pursuing SUM arbitration may maximize total recovery.

Insurance carriers defending SUM claims must conduct more sophisticated liability investigations to identify potential non-motor vehicle tortfeasors and evaluate their contribution to accidents. Carriers may need to pursue subrogation or contribution claims against non-vehicular defendants more aggressively to mitigate exposure. Policy language modifications addressing non-motor vehicle tortfeasor offsets may face regulatory scrutiny but could provide carriers some protection against unanticipated exposure.

Claimants’ counsel should document non-motor vehicle tortfeasor involvement thoroughly from the outset, preserving claims against municipalities within notice of claim deadlines, identifying defective products or equipment, and investigating all potential non-vehicular liability sources. The Sherlock framework transforms previously marginal non-motor vehicle claims into significant value components within the overall case matrix.

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