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William Collum is a Partner in the Tampa, Florida office of Butler Weihmuller Katz Craig LLP representing insurers in various first-party property coverage issues and first-party property extra-contractual “bad faith” issues. He has broad experience in homeowner claims as well as complex, multi-property commercial claims.

William provides legal advice at all stages of claim investigation, including conducting Examinations Under Oath and Sworn Statements. He advises on a wide range of insurance claims, including fire losses, windstorm losses, water losses, sinkhole losses, and losses stemming from equipment breakdown. He also is adept at navigating clients through suspected or actual fraud issues in first-party property claims. 

William has litigation experience in a variety of homeowner and commercial first-party property claims as well as first-party extra-contractual “bad faith” litigation. 

William received his Bachelors of Arts degree in political science, magna cum laude and Phi Beta Kappa, from Stetson University. He received his Juris Doctor, cum laude, from Stetson University College of Law. While at Stetson University College of Law, he was a member of Stetson University College of Law’s nationally-recognized Moot Court Board, where he participated in moot court competitions across the nation. At graduation, Stetson University College of Law awarded William the Victor O. While Award for excellence in trial advocacy.

William is admitted to practice before all state courts in Florida and the federal Northern, Middle, and Southern Districts of Florida.


  • Florida


  • Phi Beta Kappa
  • Phi Delta Phi Legal Honor Society
  • Pi Sigma Alpha
  • Victor O. Whele Award for Excellence in Trial Advocacy


  • Stetson University
    Bachelor of Arts in Political Science
  • Stetson University College of Law
    Juris Doctor (J.D.)


  • American Bar Association (ABA)
  • Florida Committee on Arson Prevention (FACAP), Member of the Board of Directors
  • Hillsborough County Bar Association (HCBA)
  • Phi Beta Kappa Alumni Association of Tampa Bay
  • The Florida Bar


  • Florida Courts (Northern, Middle and Southern Districts)
  • Florida State Courts


A Sherlock Holmesian Approach to Investigations: Methods and Strategies for Modern-Day Investigative Inquiries

Join Partner William Collum as he presents for the 2022 FIFEC Conference on June 9, 2022. Sir Arthur Conan Doyle’s fictional detective Sherlock Holmes baffled his investigative partner, Dr. Watson, with his investigational prowess, solving the toughest of puzzles with the smallest of clues. Although a fictional character, Holmes’ investigational methods and analysis provide the modern-day inv...

Partner William Collum Appointed FACAP Vice President

Join us in congratulating Partner William Collum for being appointed as Vice President for the Florida Advisory Committee on Arson Prevention (FACAP). Founded in 1975 the Florida Advisory Committee on Arson Prevention is a non-profit organization developed for the sole purpose to wage a war against the ever-growing problem of arson and insurance fraud in the state of Florida. Click here to learn ...

Climbing the Emotion/Logic Mountain: Overcoming Barriers Towards Claim Resolution

Join Partner William Collum and co-panelists Craig Maihiot (Florida Family Insurance), Christopher Scarlett (Phoenix Claims Consulting) and Donna Stockham (Stockham Law Group, P.A) as they present for the 2022 Windstorm Conference at the Loews Royal Pacific Resort on January 25, 2022. This presentation aims to give the professional tools in understanding emotions and logic in claims handling/adju...


In most circumstances involving an insurer’s extension of coverage for a property loss, an appraisal provision in an insurance policy provides an insured and an insurer a mechanism by which to resolve disagreements regarding the amount owed for that loss.  If invoked, each party appoints an appraiser, the individual to act as a representative of that party for the appraisal. While most, if no...

Recent Changes in Florida’s Property Insurance Law for Admitted and Surplus Lines Insurers: The Basics of What You Need to Know

Hours before the close of Florida’s 2021 annual legislative session, the Florida Legislature passed SB 76, legislating wide changes to the handling and litigation of property insurance claims.  The bill affects both admitted insurers and surplus lines insurers.  The bill would take effect July 1, 2021, pending approval by the governor.  Solicitation for roof claims  SB 76 creates Florida S...

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Understanding & Adjusting Business Income Claims

Partner William Collum presented "Understanding & Adjusting Business Income Claims" for the 2021 Windstorm Virtual Workshop. This presentation aimed to give the professional a solid foundation for understanding and adjusting business income claims. He and his co-presenters Mike Giasi of Giasi Law, PA, Patrick Garrett of Garrett Claims Group, Christopher Glenn of Beazley USA, and Kristine Elkin...

Congratulations to our Newest Partners!

As we move into the new year, please join us in congratulating our firm’s newest Partners! You can learn more about them by clicking on their individual photos....

William Collum 2020 FACAP Double Feature

Senior Associate William Collum presented two classes at the 2020 FACAP Annual Arson Seminar on March 4, 2020, in Ocala, FL. Learn more about both classes below: STRATEGIES FOR ENSURING EFFICIENT AND EFFECTIVE INVESTIGATIONS IN FIRE CLAIMS This presentation focused on best practices for efficient and effective insurer investigations in fire claims. We discussed the interplay of post-loss duties ...

Commercial Policies And Claims: Complexities And Nuances

Presenter: William Collum Co-Presenters: Mike Giasi (Giasi Law, P.A.), Chris Glenn (Beazley USA, Managing General Agent for syndicate out of Lloyd’s, London), and Pat Garrett (North American Insurance Consultants, Inc.). This presentation gave professionals a solid foundation for understanding commercial windstorm claims. Various commercial policy provisions, prevalent in windstorm claims, ...

A Holmesian Approach To Fire Investigations

William Collum presented "A Holmesian Approach to Fire Investigations" for the FACAP 2019 General Meeting in Tampa, Florida on August 1, 2019. This interactive course explored the Holmesian approach to investigations and the investigational tools utilized in several famous Sherlock Holmes manuscripts and applies several investigational tools and techniques to modern fire investigation, inc...

William Collum Nominated to Facap’s Board of Directors

Join us in congratulating William Collum for being appointed to the Florida Advisory Committee on Arson Prevention (FACAP) Board of Directors. Founded in 1975, the Florida Advisory Committee on Arson Prevention is a non-profit organization dedicated to the prevention of arson and insurance fraud in the state of Florida. Visit their website here....

Commercial Policies And Claims: Insight And Lessons From Hurricane Irma

William Collum and co-panelist Andrea Matott presented "Commercial Policies and Claims: Insight and Lessons from Hurricane Irma" at the 2019 Windstorm Insurance Conference in Orlando, FL on January 29, 2019. This presentation aimed to give the professional a solid foundation for understanding commercial windstorm claims....

Full Consent to Assignments

Because there can be more than one individual or entity that holds an interest in the property, a property insurance policy is generally drafted in such a way to identify and protect all the individuals or entities who have an interest in the property, even a mortgagee. When there is a loss to property covered by the insurance contract, all those individuals or entities have a vested interest in t...

Windstorm Insurance Conference – Commercial Claim Boot Camp: A Guide To Handling Commercial Windstorm Claims

William Collum from Butler Weihmuller Katz Craig presented in Orlando, FL at the Windstorm Insurance Conference on the topic of "Commercial Claim Boot Camp: A Guide to Handling Commercial Windstorm Claims". This presentation aimed to give the professionals a solid foundation for understanding commercial windstorm claims. We discussed various standard commercial policy provisions that frequently a...

39th Annual Facap Training Conference – Strategies For Ensuring Efficient & Effective Examinations Under Oath In Fire Claims

William presented  "Strategies for Ensuring Efficient and Effective Examinations Under Oath in Fire Claims". This presentation focused on the “superbowl” of the claim investigation: the Examination Under Oath. ...

18th Annual Windstorm Insurance Conference – Duties After Loss: Viewpoints From Insured And From Insurer Across Different Loss Scenarios

William Collum from Butler Weihmuller Katz Craig along with co-presenters Mike Giasi, Patrick Garrett, and Mike Ferguson, presented in Orlando, FL at the 18th Annual Windstorm Insurance Conference on the topic of "Duties After Loss: Viewpoints from Insured and from Insurer Across Different Loss Scenarios" on January 29, 2017. ...

Meet Your New Best Friend: Documentation & Communication In A Fire Claim

William Collum and Gerald Albrecht spoke at the Florida Advisory Committee on Arson Prevention (FACAP) Training Opportunity Meeting on August 25th. Their presentation addressed the legal issues regarding the claims file, including privileges and protections. They also discussed good faith claims, handling and documentation of the claims file, and the art of communication with the insured, especi...

Florida Advisory Committee On Arson Prevention (Facap) Seminar At The Fire College

Jerry Albrecht and William Collum presented at the Florida Advisory Committee on Arson Prevention (FACAP) Seminar November 4 —6, 2015 in Ocala, FL. Jerry and William's topic was, "Meet Your New Best Friend-Your Claim File”...

Defining Structual Damage: The Eleventh Circuit Rules

The following article was originally published in the HCBA magazine, The Lawyer, May - June 2015. Section 627.706, Florida Statutes, has not always required "structural damage" as part of a "sinkhole loss." Until 2005, the statute required "actual physical damage to the property." The 2005 amendment to section 627.706 narrowed the damage requirement to "structural damage to the building" but...

Tampa Insurance Professionals Business Meeting

William Collum spoke at the Tampa Insurance Professionals Business Meeting on April 17, 2014. The topic was, "2014 Florida Insurance Legislation Update."...

The High Hurdle To A Spoliation Claim: Is The Evidence Crucial?

The following article was originally published in the HCBA Magazine, The Lawyer, September - October 2012. From moldy lunch boxes to deformed 2x4s, determining what paper, electronic data, materials, tools, and equipment might be relevant to a pending construction-related claim, and require preservation, is a daunting task. The problem is compounded once construction is completed and the pro...

William Collum