How to Prove a Parent Unfit in Child Custody Cases

By Cindy Cook DeRuyter - Updated March 15, 2018
Family problems.

When courts determine who should have custody of a minor child, they evaluate the custody arrangement that would be in the child’s best interest. Unfortunately, sometimes this means that the person fighting for custody must prove that one or both of the child’s parents are not fit to care for the child.

Tip

State law governs how the courts view and decide parental custody matters. In general, proving that a parent is not fit to care for a child requires proof of abuse or neglect of the child, or documentation of the parent’s substance abuse issues, untreated mental illness or incarceration.

Determining the Factors Your State Considers

The first step in proving that a child’s parent is unfit is to identify the factors that your state considers. Reviewing your state's judicial websites for self-help information can be a good starting point. Generally, parental fitness is addressed in juvenile or family codes.

Gather Evidence and Obtain Documentation

Your belief that the child’s parent is unfit may be completely accurate. However, if you don’t have documentation to bolster your case, the court may not come to the same conclusion. When courts evaluate requests to give one parent sole custody, they may be reluctant to grant the request without strong evidence that doing so would be in the child’s best interest.

The evidence you need depends on the reason(s) you are petitioning the court for sole custody, but may include medical records and documentation of physical or psychological abuse or records showing that the parent has a substance abuse problem or mental health issues that are not being treated effectively.

The court may order a medical or mental health evaluation for your child, which can help provide information to bolster your case.

Keep Your Arguments Factual in Nature

In most cases, courts seek to maintain the parent/child relationship when making custody determinations. Even if you believe the child’s other parent is unfit to have custody, try not to disparage them in your arguments.

Instead, your arguments and comments should be based on the unbiased facts that support your position. Focus on how awarding you sole custody will help the child’s physical and mental well-being. If you believe the parent should not be awarded any visitation time or should have only supervised visitation time, it is important to establish that through facts and evidence.

Consider Getting Legal Help

Navigating family law courts, required forms and making compelling arguments for sole custody of a minor child can be challenging. Working with an attorney can help ensure your child’s rights and best interests are protected. Even if you think you cannot afford to hire an attorney, help may be available through pro bono resources in your state.

About the Author

Cindy Cook DeRuyter is an attorney in private practice and a freelance writer. She earned her J.D. from Mitchell Hamline School of Law in St. Paul, MN and her B.A. in Management and Communication from Concordia University in Mequon, WI. When she's not reading or writing, she enjoys spending time with her husband, their teenage son and their three dogs.

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