About Diana M. Sladen

For Attorney Diana Sladen, the most fundamental area of the law is the law that directly impacts the family. Practicing family law gives Attorney Sladen the chance to practice in an area that truly affects the everyday lives of her clients. She practices in all areas of family law including pre-nuptial matters, divorce, post-divorce actions, child custody, child support, enforcement actions, modification, adoption, paternity, LGBT families, military families and appeals. Attorney Sladen also handles guardianship matters in both probate and juvenile court. Attorney Sladen also handles most of the Department of Children and Family involvement in the office including: DCF representation during an investigation, DCF representation during an open case, DCF Fair Hearings, and Superior Court appeals for Fair Hearing decisions. Attorney Sladen has handled both interlocutory appeals and appeals in the Massachusetts Court of Appeals.

Attorney Sladen takes ownership of each case when a client retains her as their attorney. She strives to handle every case with great care, detail and responsibility. Attorney Sladen recognizes the importance of client care in her family law practice. She takes the time and pays close attention to develop specific and unique strategies to meet each client’s needs. She educates her clients on all available options so that her clients can make informed and cost-effective decisions.

Attorney Sladen has represented husbands, wives, mothers, fathers, grandparents, guardians and children. She has handled cases involving: mental health issues, substance abuse issues, domestic abuse and violence, interstate and international custody disputes, concurrent matters in family and juvenile court, parental alienation cases and actions involving military members.

Attorney Sladen is a member of the Worcester County Bar Association and Family Law Section. Attorney Sladen volunteers as a ARC Counsel for the Worcester County Probate and Family Court – representing and advocating on behalf of children in contested custody disputes. Attorney Sladen is also on the court approved list for Worcester County as a Category F Guardian ad Litem.

Attorney Sladen speaks Portuguese and Spanish. She is a graduate from Providence College with baccalaureate degrees in both Political Science and Philosophy. Attorney Sladen graduated from Roger Williams University School of Law. She is licensed to practice law in Massachusetts, Rhode Island Connecticut.

 

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Divorce
Posted by Michelle
April 05, 2026
Hired Attorney

We needed an attorney to handle an appeal and had gone through several attorneys before finding Diana Sladen. From the very first conversation, Diana truly listened to our situation and understood exactly what we were facing. More importantly, she shared the same determination and passion we had for fighting our case. Situations that require an attorney are incredibly stressful, but Diana immediately put us at ease. She was thorough, detail-oriented, and extremely knowledgeable throughout the entire process. We felt confident knowing she was advocating for us. What stood out most was how hard she fought for our case. She brought the exact level of dedication, preparation, and persistence we had hoped to find in an attorney. It was clear that she truly cared about the outcome and about representing us to the best of her ability. If you are looking for an attorney who will truly listen, prepare meticulously, and fight for you every step of the way, Diana Sladen is your #1 choice.

 
Family Law
Posted by Dennis
April 05, 2026
Hired Attorney

When I needed an attorney to handle an appeal, we spoke with several lawyers before finding Diana Sladen. From the beginning, Diana took the time to really listen and understand the details of my situation. It was immediately clear that she cared and shared the same determination I had to fight for my case. Diana made the appeal process much easier by keeping me informed and confident every step of the way. She is extremely thorough, attentive to detail, and very knowledgeable. Her preparation and professionalism gave me reassurance that our case was in the right hands. What impressed me the most was how committed she was to advocating for me. She approached my case with the level of dedication and persistence I had been hoping to find in an attorney. Knowing she was fighting for me made a difficult situation much more manageable. If you are looking for an attorney who will listen carefully, prepare diligently, and advocate strongly on your behalf, I highly recommend Diana Sladen.

 

Services

Practice Details

  • Languages
    Portuguese
    Spanish
  • Payment Information
    Payment & Cost Features
    Fixed hourly rates: $225 - $250/hr
  • Firm Information
    Position
    Founding Attorney
    Firm Name
    The Law Office of Diana M. Sladen
  • Additional Links

Experience

  • Bar Admission & Memberships
    Admissions
    2011, Massachusetts
    2011, Rhode Island
    2012, Connecticut
  • Education & Certifications
    Law School
    Roger Williams University School of Law
    Class of 2010
    J.D.
    Other Education
    Providence College
    Class of 2008
    B.A.
    Political Science

    Providence College
    Class of 2008
    B.A.
    Phil.
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Attorneys FAQs

  • What year was this attorney first admitted to the bar?
    Diana M. Sladen was admitted in 2011 to the State of Massachusetts and Rhode Island.
  • Is this attorney admitted to the bar in more than one state?
    Yes, Diana M. Sladen is admitted to practice in Connecticut, Massachusetts and Rhode Island.
  • What law school did this attorney attend?
    Diana M. Sladen attended Roger Williams University School of Law.