David J. Corrigan, K.C.

Divorce is one of the most difficult and stressful events anyone can experience. Lindsay’s passion is assisting people through this tumultuous experience in a manner that allows them to remain in control of their solution, minimize the conflict to which they and their children are exposed, preserve their assets and improve communication. Using mediation techniques tailored to client’s particular conflict level and matters in dispute, Lindsay maximizes the prospect for a mutually a...

Tom is a leading practitioner in management-side labour and employment law with over 25 years of experience. Applying sound judgment, proactive strategies, and common sense, Tom has successfully represented employers in a wide range of complex and challenging matters. His continued success has earned him recognition from several leading industry guides as well as the respect of both colleagues and clients. With a focus on unionized workplaces, Tom advises and represents employers in labour ar...

Gregory F. Peterson is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law and Private Funds Law. Gregory F., who practices law in Calgary, Alberta, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Gregory F. is held by other top lawyers in the same geographic and legal practice area.

Teri Treiber provides advice and representation to employers in all areas of labour and employment law. She assists employers with a variety of issues, including employment agreements, collective agreements, workplace policies, human rights, employment standards, privacy, workplace investigations, performance management, employee discipline, terminations, wrongful and constructive dismissal, grievances and arbitrations, and restrictive covenants.

Tara G. Tiefenbach is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Tara G., who practices law in Calgary, Alberta, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Tara G. is held by other top lawyers in the same geographic and legal practice area.

With a focus on settlement and the best interests of the family, Alex helps his clients minimize conflict and avoid costly prolonged court battles. He is known for his bright and practical approach and for helping clients reach solutions that ultimately allow them to move forward with their lives. Alex has extensive training and experience in interest-based negotiation, mediation and arbitration. He offers creative solutions for clients in a way that best fits their needs whether that be thro...

Perry R. Mack, K.C. is a top attorney recognized by Best Lawyers in the practice area(s) of Alternative Dispute Resolution, Appellate Practice, Bet-the-Company Litigation, Construction Law, Corporate and Commercial Litigation, Director and Officer Liability Practice, Insurance Law, International Arbitration and Personal Injury Litigation. Perry R., who practices law in Calgary, Alberta, has been recognized since 2006. This recognition is based on an exhaustive peer-review survey, reflecting t...

Sandy Vander Ziel joined Dunphy Best Blocksom LLP in 2013 and practices exclusively in family law. She is a registered collaborative lawyer, mediator and arbitrator, as well as a dispute resolution officer with the Court of King’s Bench. She has practiced in the area of family law at local and national law firms since 2002. Sandy has significant experience with a variety of methods of Alternate Dispute Resolution including Collaborative law, lawyer assisted mediation, arbitration and in...

Paul Pidde is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate and Commercial Litigation and Insurance Law. Paul, who practices law in Calgary, Alberta, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Paul is held by other top lawyers in the same geographic and legal practice area.

Shanlee’s practice is focused on securities and capital markets, mergers and acquisitions, private equity, start-ups, shareholder activism and corporate governance. Shanlee has a business-friendly, “get the deal done” mentality, enabling her to develop close and trusting business relationships while delivering practical, timely and high-value advice on an array of complex legal issues and transactions. Shanlee has extensive experience advising clients on domestic and cross-b...