Kylee R. Mattoon

Kylee R. Mattoon is an attorney at Grant, Miller & Smith, LLC whose practice includes family law, juvenile law, and criminal defense. Her family law background includes work involving custody, guardianship, adoption, and protective matters affecting children and families. She brings experience from public-interest, prosecution, and family-violence settings, giving her a broad perspective on legal disputes that involve safety, caregiving responsibilities, and complex family relationships.

Kylee graduated cum laude from Washington University School of Law, where she served as Chief Executive Editor of the Washington University Journal of Law & Policy and participated in the Children’s Rights Clinic. She earned her bachelor’s degree in Human Development & Family Studies from the University of Missouri, graduating summa cum laude. Her academic training included public-interest recognition and extensive work connected to children and families.

Kylee assisted low-income families with adoptions and legal guardianships and represented children’s best interests in custody and order-of-protection proceedings through the Children’s Rights Clinic. She also interned with the St. Louis City Circuit Attorney’s Office and was selected for the Equal Justice Works Crime Victims Justice Corps, working with Legal Aid of Western Missouri’s Human Trafficking Unit. Before law practice, she worked with families affected by violence.

Kylee R. Mattoon is a member of The Missouri Bar, the American Bar Association, and the Bar Association of Metropolitan St. Louis. She serves on the Board of Directors for the Missouri Chapter of the Association of Family and Conciliation Courts. Her combination of family-focused education, public-interest work, and litigation experience supports practical advocacy for clients facing custody, juvenile, protection, and other sensitive family law matters.

Law Office Affiliations

• Attorney, Grant, Miller & Smith, LLC
• Member, The Missouri Bar
• Member, American Bar Association
• Member, Bar Association of Metropolitan St. Louis
• Board of Directors 07/, Missouri Chapter of the Association of Family and Conciliation Courts (MO-AFCC) (2023-Present)

Licensed State

• Missouri

Education

• University of Missouri
  Bachelor’s degree in Human Development & Family Studies

Awards & Badges