Missouri & Illinois Family Law

Practice Areas

Comprehensive family law representation and mediation services for clients on both sides of the Mississippi River.

Mary C. Neff is dual-licensed in Missouri and Illinois, with over 13 years of experience handling divorce, custody, mediation, and related family law matters. Whether your case requires courtroom advocacy or a collaborative resolution, Mary has the credentials and the experience to guide you through it.

Divorce

Strategic representation for contested and uncontested divorce in Missouri and Illinois. Mary handles both straightforward and complex cases, including high-asset divorce, business interests, and cases involving children.

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Divorce Mediation

As a Supreme Court-certified mediator in both states, Mary helps divorcing couples work toward mutually acceptable agreements without the cost and conflict of a full courtroom battle.

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Child Custody & Parenting Plans

Protecting your children's best interests. Mary's Master's in Family Sciences gives her a uniquely informed perspective on what custody arrangements actually work for children.

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Paternity

Establishing legal paternity in Missouri and Illinois courts, whether voluntary or contested. Securing rights and responsibilities for fathers, mothers, and children.

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Post-Dissolution Modifications

Life changes. When circumstances shift significantly, Missouri and Illinois courts allow modifications to custody, support, and other existing orders.

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Guardian ad Litem Services

Court-appointed child advocacy in Illinois courts. As a GAL, Mary represents the best interests of the child, independent of either parent.

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Ready to Take the Next Step?

Schedule a free consultation with Mary and get clear on your options. No obligation, no pressure.

Schedule Your Free Consultation

Or call: (618) 281-MARY (6279)