Following upon his retirement from more than forty years as a trial lawyer, Roger Hennagin is offering his services as a mediator and arbitrator because he has become convinced that mutual resolution of claims and disputes provides a preferable alternative to trials. He is committed to working diligently in a focused effort to obtain mutually agreeable resolutions of all issues being litigated or that could have been litigated.


HENNAGIN MEDIATION: The Right Choice For Your Clients

If your clients are faced with having to make crucial decisions and do not know which way to turn, let Hennagin Mediation help them understand the ramifications of their choices.  Frequently, lawyers representing parties are faced with a dilemma where clients are reluctant to hear their own lawyer pointing out weaknesses or problems with their claims. We can relieve that burden.


Mediation and arbitration offer alternatives to litigation, and in many cases, can resolve issues short of trial. Litigants benefit from our wealth of experience which enables us to approach each case with a perspective that equalizes the positions of the participants. Adverse parties to disputes can be assured that their arguments will not be ignored.

Hennagin Mediation is located in SW Portland, but our practice extends well beyond the metro area, having served clients throughout Oregon and beyond.



Roger Hennagin holds a Doctor of Jurisprudence from Georgetown University Law Center.  He has thirty-seven years of jury trial experience. Prior to entering private practice, he served as defense counsel for the Burlington Northern Railroad, Deputy District Attorney for Multnomah County, hearings officer for the State of Oregon and law clerk to a federal judge. In 1988 Roger tried the first employment discrimination case ever put before a jury in Oregon. His client prevailed and lawyers throughout the state began referring employment matters to him. 

Roger Hennagin has experience acting as both mediator and arbitrator and provides these services at the request of lawyers or parties. Hourly rates are competitive and issues are resolved fairly and in a timely manner.

  • Oregon State Courts

  • U.S. District Court for Oregon

  • U.S. Court of Appeals for the 9th Circuit

  • U.S. Supreme Court


  • Lake Oswego City Council

  • Lake Oswego Rotary

  • Association for Retarded Citizens of Oregon (Past President)

  • Epilepsy Foundation of Oregon

  • Friends of the Willamette Shore Trolley (Past President)

  • Lake Oswego Chamber of Commerce




The twenty-first century has witnessed a remarkable rise in the use of mediation and arbitration to resolve disagreements and disputes between individuals and/or companies. This is most likely attributable to a growing recognition that mediation and arbitration possesses benefits that cannot be achieved by submitting disputes for determination by a third-party fact-finder. The widely acknowledged  benefits include financial economy, efficiency, customization, empowerment,  and mutual satisfaction.

  • Mediation consists of an informal attempt to resolve cases through use of an impartial third party who employs his or her powers of persuasion in a considerate attempt to motivate the parties toward a mutual agreement. Mediation can occur at almost any time during the progress of a dispute whenever the parties have acquired sufficient facts to be able to evaluate their respective positions without being influenced by emotion.  Naturally the sooner this occurs the less costly the dispute becomes and the more efficient the resolution is. 
    Mediation enables the parties to achieve a resolution that fits their particular or specific needs or objectives.  This empowers the parties far beyond what can be achieved in front of a judge or jury and leads to satisfaction for both sides.

  • Arbitration consists of the parties agreeing to submit their case to a third party who acts in the capacity of an independent judge, who listens to the testimony, reviews the documents and issues a binding decision.


  • Cost: Mediation is generally less expensive when contrasted to the expense of litigation.

  • Speed: Mediation provides a more timely way of resolving disputes.

  • Satisfactory Outcomes: Parties are generally more satisfied with solutions that have been mutually agreed upon, as opposed to solutions that are imposed by a third party decision-maker. Interest-based mediated negotiations can result in settlements that are more satisfactory to all parties than simple compromise decisions.  

  • Compliance: Parties who have reached their own agreement in mediation are generally more likely to follow through and comply with its terms than those whose resolution has been imposed by a third party decision-maker. Since mediated settlements can address both legal and extra-legal issues, the parties are able to tailor their settlement to their particular situation. 

  • Control & Predictability of Outcome: Parties who negotiate their own settlements have more control over the outcome of their dispute. 

  • Ongoing Relationships: A mediated settlement can often preserve a working relationship in ways that would not be possible in a win/lose decision-making procedure. Mediation can also make the termination of a relationship more amicable. 

  • Decisions that Hold Up Over Time: Mediated settlements tend to hold up over time, and if a later dispute results, the parties are more likely to utilize a cooperative forum of problem-solving to resolve their differences than to pursue an adversarial approach.

Roger Hennagin


© 2019 Hennagin Mediation. All rights reserved. Side designed by Smart Blonde Design