Margo Green

Michelle House, Margo Green and Justin Cordonnier

When facing an impending divorce, it can feel like you are drowning in a tumultuous sea surrounded by major decisions about the most important aspects of your life. The family law firm of Green Cordonnier & House aims to be a life jacket for you during that time, helping you protect what matters the most, says partner Margo Green. “It’s very important that the attorney you choose to guide you though that process understands the traumatic nature of the situation. You may not be able to see clearly at that moment, but with so many years of experience, we are confident that we can guide you in the right direction.”

That experience adds up to more than 100 years among the three partners: Green, Justin Cordonnier and Michelle House. Formed in 1999, the Clayton law firm offers a full-service approach covering all aspects of family law, including dissolution of marriage, motions to modify, enforcement of judgments, paternity cases, custody and visitation issues, and contempt and post-divorce motions. The partners’ expertise in such matters is evident in their abilities to help their clients, as well as their outside contributions. House and Cordonnier are members of the American Academy of Matrimonial Lawyers, while Green and House have written the chapters on child custody and post-dissolution matters, respectively, for the Missouri Bar’s handbook for multiple years.

For each client, the firm uses a team approach, with a partner working with a paralegal and one of three associate attorneys. “Each team knows everything there is to know about a specific case, so a client is getting the full services of everyone,” Green explains. “A family law attorney has to be aware of many different kinds of law because the cases involve everything from real estate, probate and tax law—we wear a lot of different hats.” And if issues arise in a specific field, the firm will take the extra steps to find outside experts on that subject matter, she adds.

As a boutique firm, Green Cordonnier & House offers a personalized focus for each client, where he or she is not just a number. The attorneys are on-call 24 hours a day, available to resolve emergency issues along the way. Knowing that the decisions made in family law are some of the biggest decisions one will ever make about his or her future, the firm makes sure to address all possible issues, even when it comes to delicate subjects like intimate affairs or financial matters. “We look into all aspects of our client’s life so we have a clear understanding of day-to-day life in that household and can take into consideration the relevant issues for the success of the case,” Green notes.

The attorneys again turn to their years of experience to approach such issues and establish a relationship of trust with their clients. “It’s knowing how to interview a client and how to reassure them that someone like me—who has been doing this for more than 30 years—has just about heard it all,” Green says. “There is nothing you can say that is going to shock me. We want our clients to be comfortable addressing those issues.”

And that is a major reason why Green Cordonnier & House will remain a boutique family law firm, able to focus on helping each client achieve a better life, Green says. “We’re able to provide a very specialized service to our clients and devote as much attention as needed to their particular case. We want to be that life jacket for them.”

ON THE COVER: For 14 years, the team at Green Cordonnier & House has handled all aspects of family law for their clients, from divorce and custody to property division and support. Utilizing more than 100 years of experience combined, the firm guides clients as they make important decisions about their future. Pictured on the cover: Clockwise from top left: Justin Cordonnier, Gina Casalone, Erin Rathjen-Decker, Michelle House, Margo Green and Jennifer Hasegawa. For more information, call 726-0455 or visit

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