Diana Sladen

PRO

Diana Sladen

also known as Diana (Cortes) Sladen

4.9
Rating: 10.0

Licensed for 14 years

Divorce and separation Lawyer at Worcester, MA
Practice Areas: Divorce & Separation, Family, Child Custody ... +3 more

146 Main Street, Suite 201, Worcester, MA

Virtual Consultation Available

Free Consultation

About Diana

Biography

2025 Avvo Client's Choice Attorney. The experience that you need. The quality that your family deserves. Call now.

Practice Areas

6

Practice Areas

Divorce and Separation 40%

40%
Child Custody 20%

20%
Family 20%

Uncontested Divorce, Contested Divorce, Child Support, Child Custody, Adoption, Modifications, GALs, Father's Rights, Domestic Violence, Contempts, Pre-nuptial Agreements

15 years

20%
Child Support 10%

10%
Guardianship 5%

5%
Juvenile Law 5%

5%

Fees and Rates

Cost

Free Consultation

$0 first 30 minutes

Hourly Rates

$ 250-350 per hour


Payment Methods

  • Cash
  • Check
  • Credit Card

Licenses

Licensed in Connecticut for 13 years

State: Connecticut

Acquired: 2012

Active

No misconduct found

Licensed in Massachusetts for 14 years

State: Massachusetts

Acquired: 2011

Active

No misconduct found

Licensed in Rhode Island for 14 years

State: Rhode Island

Acquired: 2011

Suspended For Non-Payment of Bar Dues

No misconduct found

Location

The Law Office of Diana M. Sladen

146 Main Street, Suite 201, Worcester, MA, 01608

dmsfamlaw.com/

Diana Sladen's Reviews

Avvo Review Score

4.9 /5.0

112 Client Reviews

5 star (110)
4 star (0)
3 star (0)
2 star (0)
1 star (2)

Posted by Haily | November 10, 2025 | Hired Attorney

This review is from a person who hired this attorney.

Thank you, Diana and team!!

Diana is great to work with! She was knowledgeable, direct, and personable. I will continue to hire Diana because I can tell she genuinely cares about my case and family. I highly recommend working with her and her amazing team! They are all great and responsive. Lastly, when I was in a really tough ...place in my life they assured me and showed me empathy and understanding. It helped me get through a hard time and feel stronger! Thank you !!

Posted by Maia | October 26, 2025 | Hired Attorney

This review is from a person who hired this attorney.

Highly recommended lawyer

Diana's work was excellent. She was kind, responsive, and gave amazing advice, not only answering questions clearly and promptly but anticipating elements in my case that I didn't even know I needed. I cannot recommend her work enough.

Posted by Laura | June 5, 2025 | Hired Attorney

This review is from a person who hired this attorney.

Highly competent and very efficient.

When my divorce became excessively drawn out and contentious, the judge appointed Attorney Sladen to act as conciliator. Attorney Sladen demonstrated excellent listening skills and was able to confidently and efficiently guide us quickly to our divorce agreement. She demonstrated care and concern f...or our children and for the money we had spent in legal fees. She had the expertise and skill to achieve satisfaction on both sides with regards to the final divorce agreement. I would highly recommend her services. I wish we had engaged her sooner.

Posted by James | June 5, 2025 | Hired Attorney

This review is from a person who hired this attorney.

Great Conciliator

Very knowledgeable about Worcester Probate and Family Court and divorce law. She served as conciliator in our case. Diana was respectful and productive.  She listened, understood the various positions and discussions allowed new ideas and fostered solutions that were ultimately fair and reasonable....

Posted by Nicholas | May 22, 2025 | Hired Attorney

This review is from a person who hired this attorney.

Fantastic family lawyer

Diana made a phenomenal impression from the first consultation. She was compassionate about my situation and was very willing to help me carry out as amicable and collaborative a process as possible in a difficult time. She and her team were very thorough and were able to wrap up the process quickly ...as to not have it drag out any longer than it had to. Diana is also very knowledgeable about the local county court system and is well connected with other lawyers in the area. I would highly recommend her services.

See All Client Reviews

Diana Sladen's Lawyer Endorsements

Endorse Diana
Mary Beth Ayvazian headshot
Mary Beth Ayvazian

Family lawyer | Aug 13

Relationship: Fellow lawyer in community

"I have known Attorney Sladen professionally for 6 years. Not only is she is highly skilled as a seasoned practitioner, she is a fierce advocate for her clients. I highly recommend and fully endorse her."

Irena Wallach Inman headshot
Irena Inman

Divorce and separation lawyer | Apr 18

Relationship: Fellow lawyer in community

"Attorney Sladen generously gives her time to her client's and puts true passion into each case. She really treats every case as though it is her own family."

Dahlia Habashy Bonzagni headshot
Dahlia Habashy Bonzagni

Family lawyer | Apr 17

Relationship: Fellow lawyer in community

"I have known Diana personally and professionally for many years. She is extremely knowledgeable in the field of family law, professional and a fierce advocate for every client. Anyone would be lucky to have Diana as an attorney, I cannot endorse her enough!"

P. Tyler Summers headshot
P. Tyler Summers

Child support lawyer | Apr 17

Relationship: Opposing Counsel on matter

"Diana was opposing counsel on a hotly contested post-divorce modification. Despite the challenges of the case, Diana was always professional, cordial, and a zealous advocate for her client. I endorse Diana wholeheartedly."

Kathryn E.S. Grogan headshot
Kathryn Grogan

Divorce and separation lawyer | Aug 23

Relationship: Fellow lawyer in community

"Attorney Sladen is a fantastic advocate for her clients. She puts her clients first, from the start of the case to the settlement, and ensures that the client receives the best results possible. I highly recommend Attorney Sladen."

Elena Tsizer headshot
Elena Tsizer

Divorce and separation lawyer | May 07

Relationship: Fellow lawyer in community

"Diana's confident presence, her knowledge and passion for her profession make her one great attorney. I endorse this lawyer."

Laurel Anne Barraco headshot
Laurel Barraco

Family lawyer | Apr 17

Relationship: Worked together on matter

"Attorney Sladen brings a fresh perspective to any divorce or custody matter and is able to find the best solution for her clients in an expedient and cost effective manner. Her tenacity and attention to detail are beyond compare and lend to her high level of court room performance, as well as negotiating skills."

Patrick Michael Grogan headshot
Patrick Grogan

Family lawyer | Apr 17

Relationship: Co-worker

"Attorney Sladen makes herself available to aid both clients and fellow attorneys within the firm. Her willingness to help is compounded by her knowledge of Massachusetts, Rhode Island and Connecticut law."

David L. Callahan headshot
David Callahan

Alimony lawyer | Dec 13

Relationship: Worked together on matter

"When it comes to navigating the new alimony statute she is one of the "go to" attorneys in the state."

View All Endorsements
Makayla Caliri headshot
Makayla Caliri

Child custody lawyer

Irena Wallach Inman headshot
Irena Inman

Family lawyer

P. Tyler Summers headshot
P. Tyler Summers

Family lawyer

Patrick Michael Grogan headshot
Patrick Grogan

Family lawyer

Laurel Anne Barraco headshot
Laurel Barraco

Family lawyer

Caitlin M. Costigan headshot
Caitlin Costigan

Unknown lawyer

Mandy M. Hebert headshot
Mandy Hebert

Unknown lawyer

David L. Callahan headshot
David Callahan

Divorce and separation lawyer

Experience

Rating:  10.0 (Superb)

Honors

2025

2025 Rising Star, SuperLawyers

2025

Rising Star, Super Lawyers

2024

2024 Rising Star, SuperLawyers

2024

Rising Star, Super Lawyers

2023

2023 Rising Star, SuperLawyers

2023

Rising Star, Super Lawyers

2022

2022 Rising Star, SuperLawyers

2022

Rising Star, Super Lawyers

2019

Client's Choice, Avvo

2018

Client's Choice, Avvo

2017

Client's Choice, Avvo

Work Experience

2018 - Present

Owner, The Law Office of Diana M. Sladen

2016 - 2018

Attorney, Callahan, Barraco & Inman, P.C.

2015 - 2016

Attorney, Cordell & Cordell, P.C.

2011 - 2015

Senior Attorney, Pollack Law Group, P.C.

2010 - 2011

Law Clerk, Homonoff, Levine and Pulner

2009 - 2011

Associate Attorney, Miller & Caine LLP

Associations

2018 - Present

Worcester County Bar Association, Family Law Secti

Member

2011 - Present

Worcester County Bar Association

Member

2021 - 2025

Worcester County Bar Association Conciliation Program

Co-chair

2018 - 2024

Rhode Island Bar Association

Member

2011 - 2024

Rhode Island Family Court Bench Bar Committee

Member

Education

2010

Roger Williams University School of Law

JD - Juris Doctor

2008

Providence College

B.A.-Philosophy + B.A. - Political Science

Speaking Engagements

2021

Paralegal's Guide to Divorce and Pre-nuptial Agreements

Legal Ethics in Family Law

2021

Paralegal's Guide to Divorce and Pre-nuptial Agreements

Smart Phones and Social Media Discovery in Divorce

2017

Divorce Seminar

Divorce in Massachusetts

Languages

Portuguese

Spanish

English

Avvo Rating

Our Rating is calculated using information the lawyer has included on their profile in addition to the information we collect from state bar associations and other organizations that license legal professionals. Attorneys who claim their profiles and provide Avvo with more information tend to have a higher rating than those who do not.

What determines Avvo Rating?
  • Experience & background Years licensed, work experience, education
  • Legal community recognition Peer endorsements, associations, awards
  • Legal thought leadership Publications, speaking engagements
  • Discipline Disciplinary information may not be comprehensive, or updated. We recommend that you always check a lawyer's disciplinary status with their respective state bar association before hiring them.
Avvo Rating Levels
10.0 - 9.0 Superb8.9 - 8.0 Excellent7.9 - 7.0 Very Good6.9 - 6.0 Good5.9 - 5.0 Average4.9 - 4.0 Concern3.9 - 3.0 Caution2.9 - 2.0 Strong Caution1.9 - 1.0 Extreme Caution