Marie became a member of the Florida State Bar in 1989. While living in Florida, Marie worked as a litigation associate for a major insurance defense firm, defending business establishments such as Winn Dixie, Wal-Mart, Rite Aid, and insureds of major insurance companies such as Progressive and State Farm. Marie then became a partner at the law firm of Maiolo Campbell & Wotton where she handled all firm litigation specializing in personal injury matters such as auto accidents, premises and products liability with an emphasis on assisting members of the Hispanic Community.
Marie moved to California and became a member of the California State Bar in 1996. After briefly working as an insurance defense litigation associate, Marie founded the firm of Harris & Muchow where she served as the Managing Partner representing injured parties and litigating a variety of personal injury matters: first and third party auto accident claims, wrongful death matters, premises and products liability claims involving serious and grave injuries and other complex multiparty personal injury litigation.
In 2002, Marie began her mediation training by completing the comprehensive 40 hour course with Nancy Neal Yeend of the John Paul Jones Group sponsored by the Sonoma County Bar Association. She then began mediating small and medium sized personal injury matters locally. In 2010, Marie joined the panel of volunteers for the Sonoma County Superior Court No Fee Mediation Program and enjoyed the challenges of facilitating settlements in 3 hours or less, many times allowing additional free time to secure resolutions. This experience provided additional training and sharpening of sensitivities to a variety of situations. Marie also began her first term as a Small Claims Judge Pro Tem for Sonoma County Superior Court. Volunteering in this capacity has provided a rich resource of experience for navigating and resolving disputes. In 2011, Marie began volunteering as a Mandatory Settlement Conference Judge Pro Tem where she continues to provide dispute resolution services to litigants facing upcoming trials.
Marie currently serves as a Small Claims Judge and Settlement Conference Judge Pro Tem for the Superior Court of Sonoma County and has served as panelist for the Sonoma County Mediation Program, as the Vice President and President of the Sonoma County Consumer Attorneys Association, as a Director on the Board for the Sonoma County Bar Association, and as Vice President of the Hispanic Chamber of Commerce. Marie is currently a member of the Consumer Attorneys of California, American Trial Lawyers Association, Sonoma County Bar Association, the California State Bar and the Florida State Bar. Marie also serves as an Adjunct Professor at the Santa Rosa Junior College teaching Discovery in the Paralegal Studies Program.