John M. Callahan
Trial Attorney

About John M. Callahan
John Callahan brings more than three decades of courtroom and litigation experience to Bashore Green Law Group. His practice centers on personal injury matters, particularly No Fault automobile claims, premises liability cases, and medical provider reimbursement actions. Known for his practical insight and steady counsel, John helps clients navigate complex legal issues while keeping their goals firmly in focus.
- 33 years of legal experience in personal injury and insurance related litigation
- Author of the ICLE’s original Michigan Insurance Law and Practice No Fault section (2002)
- Former facilitator, mediator, and arbitrator with JMC Dispute Resolution
- Extensive experience with alternative dispute resolution and insurance coverage matters
- Supports the firm’s auto, truck, and motorcycle accident cases
A Trusted Voice in Personal Injury and Insurance Law
Over the course of his career, John has developed a reputation for understanding the complexities of Michigan’s No Fault system and the legal challenges that often arise between injured individuals, medical providers, and insurance companies.
His work is guided by a simple principle: every client deserves to feel heard and to know their attorney is genuinely invested in their outcome. Whether handling a personal injury dispute or advising on insurance related litigation, John works to ensure that clients understand their options and feel confident about the path forward.
“My motivation has always been straightforward. I want every client to know their concerns matter and that their case is receiving my full attention.” - John Callahan
Professional Background
John’s legal career spans a wide range of litigation and dispute resolution work. In addition to representing clients in personal injury and insurance matters, he previously served as a facilitation attorney with JMC Dispute Resolution in Northville, where he acted as a facilitator, mediator, and arbitrator throughout Wayne, Oakland, and Macomb counties.
That experience gave him a deeper understanding of how disputes can be resolved outside of traditional courtroom litigation. He has since applied that knowledge to help clients evaluate both litigation and resolution strategies in complex cases.
John is also recognized for his contribution to legal scholarship. In 2002 he authored the original ICLE Michigan Insurance Law and Practice No Fault section, a resource widely used by attorneys navigating Michigan’s No Fault system.
At Bashore Green Law Group, John contributes to the firm’s auto, truck, and motorcycle accident litigation, while also expanding his work in business, municipal, and personal legal matters.

What Clients Appreciate About Working with John
Clients who work with John often value his perspective and steady approach to legal challenges. He focuses on:
- Understanding the objectives that matter most to each client
- Offering practical guidance grounded in decades of experience
- Navigating complex insurance and liability issues
- Helping clients move through litigation with clarity and confidence
For John, successful representation means ensuring that every client feels respected, informed, and supported throughout the process.
Outside the Office
John enjoys spending time with his wife and their two daughters. After years in the courtroom, family life provides a welcome balance and a reminder of the people and relationships that matter most.
At home, the family cat often claims a comfortable seat nearby while John reviews files or prepares for the next day.
Even after thirty-three years in practice, John continues to find satisfaction in helping clients reach their goals and seeing their confidence restored after difficult legal situations.
Community Involvement
John has remained active in the communities he serves. He volunteered for more than a decade on the Northville Zoning Appeals Board, including five years as secretary, helping address local land use and zoning matters.
He is also a member of the Knights of Columbus and the Eagles Club, organizations that reflect his commitment to community involvement and service.
Credentials
Education
Detroit College of Law - Juris Doctor
Michigan State University - B.S., Social Science and Criminal Justice
Professional Memberships
State Bar of Michigan
Michigan Bar Association - ADR Section and Insurance & Indemnity Section
Oakland County Bar Association - Past Chair, ADR Section
Macomb County Bar Association
Incorporated Society of Irish American Lawyers
Bar Admission
Michigan
Speak With John About Your Case
Legal matters often involve uncertainty and difficult decisions. John works closely with clients to understand their objectives and help them pursue the most practical path forward.
Get in Touch With Our Team
Our Address
17 S Saginaw St, Pontiac, MI 48342
Phone Number
(248) 487-1887
