Competent and Compassionate Lawyer for Family Cases

Family law specifically deals with family matters and other domestic relations. I specialize in cases under this area of the law, especially those that involve the following:


Dissolution of marriage, commonly referred to as divorce, is the legal termination of a marriage contract between spouses. Divorce determines how parties determine the future care of their children, divides assets and debts, and determines support and spousal maintenance (also referred to as alimony).

Child Custody

Custody is divided into two parts, physical and legal. “Physical custody”, also called “parenting time”, refers to the living arrangements of the child, along with the rights and responsibilities associated with daily care of the child. “Legal custody”, also called “Legal decision making” refers to the way in which decisions will be made about the child's education, healthcare and religion.

Paternity Cases

Paternity refers to the legal establishment of a father's rights and responsibilities to a child when the parties are not married. A Paternity action will also establish custody and child support.

Spousal Maintenance

Spousal maintenance, also known as alimony, is a court-ordered payment paid by one spouse to the other spouse or former spouse.  

Spousal maintenance is determined through the court by taking into account a number of issues, such as the length of the marriage, each parties' income, and work history.  After weighing all these factors, the court may decide to include alimony as part of the divorce.

Estate Planning

Estate planning is all about protecting your loved ones from unnecessary taxes and stress. Essential to estate planning is transferring assets to heirs with an eye toward creating the smallest tax burden for them as possible.

Legal Representation Like No Other

When I receive a new assignment, I have zero interest in treating it like any other case. It is paramount that my clients are comfortable throughout the legal process, so I do my best to make my clients feel at ease and adjust my methods to conform to their unique circumstances.

Let me represent you with the respect and understanding you deserve. Feel free to reach out to me to find out how I can be of service to you.

Contact Dianne today!

Sullivan Law Office Is Here for You

At Sullivan Law Office, I focus on Divorce, Child Custody, Paternity Cases, Spousal Maintenance, and Estate Planning and I am here to listen to you and help you navigate the legal system.

Contact Me Today

Dianne Sullivan is committed to answering your questions about Divorce, Child Custody, Paternity Cases, Spousal Maintenance, and Estate Planning issues in Arizona.

I'll gladly discuss your case with you at your convenience. Contact me today to schedule an appointment.

Mesa Office
3707 E. Southern Avenue
Mesa, AZ 85206
Peoria Office
16165 N. 83rd Ave., Suite 200
Peoria, AZ 85382
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