Liberty Mutual

By Frank N. Darras > Founding Partner, DarrasLaw | Nationally Recognized Disability Advocate > Last Updated: September 2026
With more than 30 years of experience and nearly $1 billion recovered for disabled policyholders, Frank Darras leads one of the nation’s foremost disability litigation firms in holding major insurers and administrators accountable, including matters involving Liberty Mutual and legacy Liberty Life disability coverage. Disability claims associated with Liberty Mutual may involve complicated policy provisions, strict appeal deadlines, ERISA requirements, occupational disability definitions, disputes over medical evidence and functional restrictions, and questions involving benefit limitations, exclusions, offsets, or continuing proof of loss. This guide draws on decades of experience representing policyholders whose disability benefits have been wrongfully denied, delayed, reduced, or terminated and helping them navigate the legal and procedural challenges these claims can present.

If you have a disability insurance policy originally issued, administered, or associated with Liberty Mutual and your benefits have been delayed, denied, reduced, or terminated, the first step is determining exactly which company now administers your claim and what law governs your policy.

That distinction matters. In 2018, Liberty Mutual sold Liberty Life Assurance Company of Boston and its group benefits business to Lincoln Financial Group. As a result, some people who still think of their coverage as a “Liberty Mutual disability policy” may now receive correspondence, claim decisions, or benefit administration from Lincoln Financial.

At DarrasLaw, our disability insurance attorneys represent policyholders across the United States in complex individual and employer-sponsored disability insurance disputes. Founding partner Frank N. Darras has spent more than 30 years handling disability insurance matters involving major national carriers, including disputed claims arising under legacy Liberty Mutual coverage.

If your disability benefits have been denied or terminated, call 800-898-7299 to request a free, confidential policy and claim review.

Does Liberty Mutual Still Handle Disability Insurance Claims?

Many older disability policies and benefit documents still contain the Liberty Mutual or Liberty Life name. However, Liberty Mutual’s disability insurance business changed significantly in 2018.

Liberty Mutual sold Liberty Life Assurance Company of Boston to Lincoln Financial Group, including its group benefits operations. Lincoln Financial subsequently incorporated that business into its Group Protection operations, which include employer-sponsored short-term and long-term disability coverage.

Because of that transaction, a claimant may have:

• A disability policy originally issued under the Liberty Mutual or Liberty Life name;
• Older policy documents referring to Liberty Life Assurance Company of Boston;
• A current claim administered by Lincoln Financial;
• An employer-sponsored disability plan that changed administrators over time; or
• A legacy policy with different contractual or administrative arrangements.

The name printed on an old policy is not always enough to determine who currently controls the claim. Review your most recent benefit statements, claim correspondence, denial letter, Summary Plan Description, and insurance certificate to identify the insurer or administrator presently making decisions on your benefits.

What Should I Do If My Liberty Mutual Disability Claim Was Denied?

If a disability claim associated with Liberty Mutual, Liberty Life, or Lincoln Financial has been denied, do not respond to the denial until you understand whether your coverage is governed by ERISA or by an individual insurance contract.

The appropriate strategy can be very different depending on the type of policy.

Start by preserving and reviewing:

• Your complete disability insurance policy or plan documents;
• The denial or termination letter;
• All medical records submitted to the insurer;
• Attending physician statements and work restrictions;
• Letters or reports from insurer-selected medical reviewers;
• Vocational or occupational evaluations;
• Emails, letters, claim notes, and telephone communications;
• Information concerning your job duties and occupational demands; and
• Any surveillance, social media, or investigative evidence referenced by the insurer.

The denial letter is especially important because it should identify why the insurer believes you do not satisfy the policy’s definition of disability and, for many employer-sponsored plans, explain your administrative appeal rights and applicable deadlines.

Common Reasons Disability Benefits May Be Denied or Terminated

Disability insurance disputes are highly dependent on the language of the particular policy. A claim may be challenged even when the insurer acknowledges that the claimant has a diagnosed medical condition.

Common issues include:

• Insufficient medical evidence: The insurer argues that the records do not adequately document functional impairment.
• Disagreement with treating physicians: An insurer-selected reviewer reaches conclusions that differ from those of the claimant’s doctors.
• Ability to perform occupational duties: The carrier concludes that the claimant can still perform the material duties of his or her occupation.
• Change from “own occupation” to “any occupation”: Some policies change their disability definition after benefits have been paid for a specified period.
• Surveillance or social media: The insurer argues that observed activities are inconsistent with reported limitations.
• Failure to provide continuing proof of disability: Carriers may request updated medical records, forms, testing, or other documentation.
• Pre-existing condition provisions: The insurer contends that the claimed disability falls within a contractual limitation or exclusion.
• Mental health or self-reported symptom limitations: Certain policies restrict the duration of benefits for specified conditions.
• Vocational disputes: The insurer identifies occupations it believes the claimant can perform despite medical restrictions.

A denial does not necessarily mean the insurer’s interpretation is correct. The policy language, medical record, occupational evidence, claim file, and applicable law must be evaluated together.

Is My Liberty Mutual Disability Claim Governed by ERISA?

Many disability policies obtained through a private-sector employer are governed by the federal Employee Retirement Income Security Act of 1974 (ERISA). Individually purchased disability policies generally are not, although exceptions and special circumstances can apply.

This distinction is critical.

If your claim is governed by ERISA, you may be required to complete the plan’s administrative appeal process before filing a lawsuit. The evidence developed during that process can become extremely important if the dispute later proceeds to federal court.

An ERISA disability appeal should therefore be treated as much more than a short letter asking the insurer to reconsider.

A comprehensive appeal may need to address:

• The precise reasons stated in the denial;
• Medical evidence supporting specific restrictions and limitations;
• Deficiencies in insurer medical reviews;
• The actual physical and cognitive demands of your occupation;
• Vocational evidence;
• Medication side effects;
• Objective testing where appropriate;
• Symptoms that cannot be measured by a simple laboratory or imaging test;
• Unsuccessful attempts to return to work; and
• Errors or omissions contained in the insurer’s claim file.

You can learn more about these claims on our ERISA and group disability insurance page.

Why the Administrative Record Matters in an ERISA Disability Appeal

For many ERISA-governed disability cases, the administrative record developed during the claims and appeals process becomes central to any later federal lawsuit.

That means waiting until after the final denial to gather important evidence can create serious problems.

Before an administrative appeal is completed, the claim should be examined for missing or incomplete evidence such as:

• Incomplete medical records;
• Vague physician restrictions;
• Incorrect occupational classifications;
• Unanswered insurer medical reviews;
• Weak or inaccurate vocational analysis;
• Unexplained treatment gaps;
• Incomplete documentation of fatigue, pain, cognitive symptoms, or medication side effects; and
• Evidence showing why isolated activities do not demonstrate the ability to maintain full-time employment.

An experienced long-term disability appeal lawyer can review the denial in the context of the complete policy and claim file rather than simply responding to the insurer’s conclusions.

Individual Liberty Mutual Disability Insurance Claims

Not every legacy Liberty Mutual disability claim is governed by ERISA. Some policyholders purchased individual disability insurance directly or obtained coverage under arrangements that may fall outside ERISA.

Individual disability policies are contracts, and even small differences in contractual language can significantly affect a claim.

Important provisions may include:

• Own-occupation definitions;
• Total disability provisions;
• Partial or residual disability benefits;
• Elimination periods;
• Benefit periods;
• Recurrent disability clauses;
• Presumptive disability provisions;
• Pre-existing condition exclusions;
• Proof-of-loss requirements;
• Benefit offsets; and
• Limitations applying to certain medical conditions.

If you purchased your disability policy individually, do not assume the same appeal procedures that apply to an employer-sponsored ERISA plan apply to you. The policy and law of the applicable jurisdiction should be reviewed before deciding how to challenge an adverse claim decision.

What Evidence Can Strengthen a Long-Term Disability Claim?

A diagnosis alone usually does not answer the central question in a disability insurance claim: How does your condition prevent you from reliably performing the duties required by your occupation?

Depending on the condition and policy, useful evidence may include:

• Clinical examination findings;
• Diagnostic imaging and laboratory testing;
• Specialist treatment records;
• Detailed statements from treating physicians;
• Functional capacity evaluations;
• Neuropsychological testing;
• Vocational assessments;
• Job descriptions and evidence of actual occupational duties;
• Documentation of medication side effects;
• Records of failed attempts to return to work;
• Symptom diaries where appropriate; and
• Statements or other evidence documenting changes in day-to-day functioning.

The evidence that matters most depends on your diagnosis, symptoms, occupation, policy language, and the specific reasons the insurer gave for denying benefits.

What If the Insurer Says I Can Work in Another Occupation?

Some long-term disability policies initially determine disability based on whether you can perform your regular or own occupation and later apply an “any occupation” or similar definition.

If the definition changes, the carrier may conduct a vocational analysis and identify other occupations it believes you can perform.

That analysis should not automatically be accepted as accurate.

Questions may include:

• Whether the proposed occupations are consistent with your documented restrictions;
• Whether you can perform the work on a predictable, full-time basis;
• Whether the carrier accurately evaluated your education and work experience;
• Whether cognitive or medication-related limitations were considered;
• Whether earnings requirements in the policy were correctly applied; and
• Whether the occupational descriptions accurately reflect how the jobs are performed.

When vocational evidence becomes central to the dispute, an independent vocational analysis may be appropriate.

Can Disability Benefits Be Terminated After They Have Already Been Approved?

Yes. Approval of a long-term disability claim does not necessarily guarantee that benefits will continue through the maximum benefit period.

Insurers typically require continuing proof that the claimant satisfies the policy’s definition of disability. A carrier may periodically request updated medical records, physician statements, interviews, examinations, financial information, vocational information, or other evidence.

Benefits may also be reviewed when:

• The policy’s definition of disability changes;
• The claimant reaches a contractual benefit milestone;
• A medical reviewer concludes that restrictions are no longer supported;
• The insurer obtains surveillance or other investigative evidence;
• The claimant begins working or attempts to return to work; or
• The insurer believes another policy limitation applies.

If benefits that have been paid for months or years are suddenly terminated, the prior claim history can be important. The insurer should be required to explain the factual and contractual basis for its new decision.

How DarrasLaw Handles Disability Insurance Claims

Disability insurance is not a small part of our practice. It is a central focus of DarrasLaw.

For more than three decades, Frank N. Darras and the attorneys at DarrasLaw have represented physicians, dentists, executives, attorneys, business owners, professionals, employees, and other disabled policyholders in disputes with major disability insurance companies across the country.

DarrasLaw has recovered nearly $1 billion in wrongfully denied insurance benefits for clients and brings decades of disability insurance claim and litigation experience to each case.

Depending on the circumstances, our attorneys may:

• Analyze the disability policy and applicable definitions;
• Review the insurer’s denial or termination letter;
• Determine whether ERISA applies;
• Obtain and review the insurer’s claim file;
• Analyze medical and vocational evidence;
• Identify weaknesses in insurer-selected medical reviews;
• Help develop evidence addressing occupational restrictions;
• Prepare administrative appeals when required;
• Evaluate individual disability insurance remedies; and
• Litigate disability insurance disputes when appropriate.

Learn more about our firm’s honors and recognition and our experience representing disabled policyholders nationwide.

Meet Our Disability Attorneys

Frank N. Darras, Founding Partner
Experience: For more than 30 years, Frank N. Darras has focused exclusively on long-term disability and insurance litigation, including high-stakes disputes against Lloyd’s of London syndicates.

Track Record: He and his firm have recovered nearly $1 billion in wrongfully delayed and denied insurance benefits for policyholders nationwide.

Recognition: Named to Lawdragon’s Top 500 Lawyers in America for 18 consecutive years and listed in Best Lawyers in America since 2006, Mr. Darras is widely regarded as a leading authority on ERISA and disability insurance law.

Susan B. Grabarsky, Senior Trial Attorney
Experience: Ms. Grabarsky represents both individual policyholders and employee groups in complex disability disputes. Her prior experience as an insurance cost-containment analyst provides unique insight into how carriers evaluate and deny claims.

Approach: She leverages her understanding of insurer review tactics to strategically challenge Lloyd’s denials and push for full payment of valid benefits.

Reputation: Known for meticulous preparation and assertive advocacy, she has built a strong record confronting unfair disability practices.

Heather Gardner, Senior Associate
Experience: Heather Gardner concentrates on ERISA-governed and individual disability appeals involving national and international carriers.

Role in Litigation: Working closely with Frank Darras, she helps develop comprehensive administrative records and appellate strategies designed to withstand federal court scrutiny.

Professional Strength: She is respected for her precision in analyzing policy language and dismantling complex denial rationales.

Phillip S. Bather, Associate Attorney
Experience: Phillip S. Bather focuses on ERISA litigation and insurance bad-faith disputes, assisting clients through intake, claim development, and administrative appeals.

Case Strategy: He works to assemble compelling evidentiary records aimed at reversing unjust denials and positioning cases for successful litigation when necessary.

Client Commitment: Recognized for his responsiveness and detail-oriented advocacy, he supports claimants facing aggressive insurer resistance.

Trusted Legal Credentials

• AV Preeminent® Rating – Martindale-Hubbell
• Best Lawyers in America – Disability Law
• Lawdragon 500 Leading Plaintiff Lawyers

Talk to a Disability Insurance Lawyer About Your Liberty Mutual or Legacy Liberty Life Claim

If your disability policy was issued through Liberty Mutual or Liberty Life, or if Lincoln Financial is now handling a disability claim connected to your former Liberty coverage, DarrasLaw can review your policy, denial letter, and claim history to determine your options.

For more than 30 years, DarrasLaw has focused on helping disabled policyholders challenge delayed, denied, reduced, and terminated insurance benefits.

Call DarrasLaw at 800-898-7299 or contact us online to request a free, confidential disability insurance case review.

Frequently Asked Questions About Liberty Mutual Disability Claims

Disclaimer: This page is provided for general educational and informational purposes only and does not constitute legal advice or create an attorney-client relationship. Disability insurance rights, deadlines, ERISA requirements, policy provisions, standards of review, and available remedies depend on the specific policy, plan, jurisdiction, and facts of each claim. Past results do not guarantee a similar outcome.