ABOUT US
ROSELLEN SULLIVAN
Rosellen Sullivan, KC is a trusted workplace investigator and a seasoned trial lawyer with over two decades of legal experience. A former Department of Justice lawyer and counsel in the Lamer Inquiry, she has appeared at all levels of court, including the Supreme Court of Canada. Named Best Lawyer since 2020 and a Fellow of the American College of Trial Lawyers, Rosellen now leads Sullivan Investigative Insights. She specializes in trauma-informed, impartial investigations into workplace harassment and misconduct, combining legal expertise with empathy and discretion to deliver clear, defensible findings that support trust, resolution, and safe workplace cultures.
OUR PILLARS
TRAUMA-INFORMED AND RESPECTFUL ENGAGEMENT
We recognize the profound emotional toll workplace harassment and sexual violence can have. Our trauma-informed approach ensures all participants are treated with care, dignity, and respect.
We create psychologically safe spaces for interviews, use non-judgmental language, and tailor our attention to individual needs. Through this respectful approach, we strive to build trust, encourage honest participation, and reduce the risk of retraumatization.
We know that this approach leads to more accurate information and contributes to the emotional wellbeing of those involved in uncomfortable workplace investigations.
LEGAL INTEGRITY AND PROCEDURAL FAIRNESS
Sullivan Investigative Insights applies years of courtroom experience to frame an approach that is built on a solid foundation.
We apply established knowledge of legal principles, investigative best practices, and procedural fairness to ensure every investigation is credible, consistent, and defensible. We uphold neutrality, document thoroughly, and follow due process to protect the rights of all parties.
By aligning our methods with workplace policies, legislation, and case law, we provide trustworthy findings you can rely on to navigate risk, maintain accountability and support a culture of respect.
CLARITY
AND TRANSPARENCY
Clear communication and thoughtful reporting are critical to achieving positive outcomes. We strive to understand context and distill complex facts and circumstances into structured, accessible findings, supported by sound rationale and evidence.
We communicate with professionalism and transparency throughout the entire process, keeping stakeholders informed and confident in our processes.
Our goal is not only to determine what has happened but to empower organizations to take responsible, informed action that strengthens workplace culture, mitigates harm, and reflects their values.
OUR MISSION
Our mission is to deliver impartial, trauma-informed workplace investigations into harassment and sexual violence, grounded in legal expertise and guided by fairness, empathy, and integrity.
We approach every investigation with neutrality, care, and professionalism. We strive to provide clear, evidence-based reports to support informed decisions that foster safe, inclusive environments.
We are committed to preserving trust and dignity by approaching every workplace situation with respect and a clear understanding of the people involved.
