The Law Office of Diana M. Sladen, PLLC

My experience with Diana Sladen of Sladen & Costigan Family Law Attorneys was nothing short of outstanding. The firm handled my divorce with the utmost professionalism and care. If you're looking for a family law attorney who is passionate about her job, knowledgeable, sincere, and a go-getter, I recommend Diana Sladen. Additionally, the paralegal staff was friendly, courteous, and prompt in their responses, which made the whole stressful process much more bearable. The entire team put my mind at ease during a very emotional time in my life. I am profoundly grateful for their services, and highly recommend Diana and her team at Sladen & Costigan to anyone facing similar circumstances.

I didn't know what to expect before hiring Caitlin Costigan to help me with my divorce but she was very kind and make the process very smooth ! will recommend her to everyone.

Diana is an amazing lawyer and absolutely does an outstanding job. Great communication and explaining everything in depth that you may need better clarification about. My divorce and custody agreement were handled with such care. Highly recommend to anyone searching for a great family law firm.

Diana is a kind lawyer and calming presence to clients like us, but tenacious to those she was representing us against. I have had several moments of stress throughout our case and each time she said that it was her job to be the worrier, that she would take care of it - and she did. She is great with our kids too. I would recommend her to any family or any "mama bear" type in search of advocacy.

I was represented by Caitlin Costigan and Diana Sladen on my divorce case. We had agreed on assets but went to trial on children custody. I would not recommend this law firm on any custody case for men. They are not experienced at fighting children custody and reducing child support. Caitlin & Diana both worked on my case and I lost my trial and my ex moved the kids to CA. They will not tell you that your chances are not good at gaining custody but they will encourage to fight for custody. I would recommend doing research on the case laws in MA about custody and children removals to another state. I spent more than 70K on the case and we lost at the end. I would not recommend this law firm to battle for custody.