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Michael W Mastrianni

Divorce and separation Attorney at Plainville, CT

4.0   9 reviews
  • Licensed for 40 years
    State CT
    Acquired 1984
    Active No misconduct found

We have not found any instances of professional misconduct for this lawyer.

About Michael

Learn Michael’s areas of practice.


Attorney Mastrianni grew up in Plainville and has spent his entire career practicing law in Plainville. He presently serves as the Town Attorney for the Town of Plainville. Prior to establishing Mastrianni and Seguljic, he managed his own law practice in Plainville. For eight years prior, he was a partner at the law firm of Famiglietti, Thompson, Vollono & Mastrianni in Plainville. He worked for five years as an associate in the Plainville practice of Koskoff, McMahon & Condon. He is a graduate of Plainville High School and received his law degree from the University of Bridgeport School of Law where he was selected as a member of the University’s National Moot Court Board, worked in the Legal Aid Society and was chosen to be a Student Bar Association representative. Mr. Mastrianni also interned as an Assistant to the Prosecutor in the Bridgeport State’s Attorneys Office. He received his undergraduate degree from Southern Connecticut State University in New Haven, Connecticut.


His extensive experience as an arbitrator and court-appointed special master has allowed him to be more effective both as an advocate and as a problem solver in helping clients find innovative, economical resolutions of their personal disputes.

Attorney Mastrianni is also the Town Attorney for the Town of Plainville. As Town Attorney, he is involved in all aspects of town government and provides advice regarding issues faced by the Town, including zoning issues, personnel matters, tax appeals, collections, charter revisions and potential Town liability issues.


Mastrianni & Seguljic, LLC
128 East St
Plainville, CT, 06062-2911


4.0 / 5.0
  9 customer reviews
Posted by Josh | March 3, 2021
This review is from a person who hired this attorney.
| Hired Attorney
Highly Recommend
Michael was very thorough with a real estate sale and purchase done in tandem. His paralegal Stephanie was on top of EVERYTHING with very timely updates and taking care of all of the required paperwork, so that made the sale and purchase incredibly easy. Highly recommend this office for real estate needs.
Posted by michel | November 14, 2019
This review is from a person who hired this attorney.
| Hired Attorney
Attorney Mastrianni was very knowledgeable in handling of my case. He made great effort to accommodate me around my busy schedule.
Posted by Michelle | September 18, 2019
This review is from a person who hired this attorney.
| Hired Attorney
Great attorney!
Mike Mastrianni has been my lawyer for over 9 years. He has always fought hard and put all his effort into my case. I highly recommend him if you need a divorce/custody representation!
Posted by Mark | June 5, 2019
This review is from a person who hired this attorney.
| Hired Attorney
Very positive experience
I am very pleased with the way Mr. Mastrianni and Ms. Gibbons handled the sale of my home. Their communication throughout the process was exceptional, they were well-prepared and explained everything clearly, and they both made a stressful situation much easier. I plan to enlist their services in the future.
Posted by Deborah | April 29, 2019
This review is from a person who hired this attorney.
| Hired Attorney
You can TRUST
I have dealt with this law firm for several years. We have gone through probate proceedings for my parents and then other personal issues besides. I find them to honest...fair and courteous. Michael knows the law and he knows how to handle situations and get done what needs to be done. I will go back to them if I have a need. You can put your trust in them.
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Posted by Mark | April 29, 2019
This review is from a person who hired this attorney.
| Hired Attorney
Excellent attorney. Did a great job.
Attorney Mastrianni represented me in my divorce case. I have to say, he did an excellent job. He is very knowledgeable. He always kept me up-to-date about what was happening and was always very reachable if I needed to speak with him. Throughout the whole process, there was never a doubt that he had my best interest in mind. I was very pleased with his work and will use him again for all my future legal needs.
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Posted by joyce | January 29, 2014
Did a good job representing me
Attorney Mastrianni handled my divorce several years ago. He was great about calling me back, he made sure I was informed about everything important along the way and he advised me what NOT to do which in a divorce is very important. I feel he did a very good job and would highly recommend this Attorney for any of your general needs. I would hire him again if I needed another lawyer in the future.
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Posted by Tracy | October 20, 2017
This review is from a person who hired this attorney.
| Hired Attorney
Very unhappy
This lawyer has done nothing for me except take my money. He has sent another lawyer in his place, and he was incompetent in handling my case. I have a criminal case that my lawyer was supposed to help me with, he withdrew my case at the courthouse two days prior without my knowledge, showed up to court with me like everything was legit, only to find out my case was withdrawn without any rhyme or reason. Now I have to hire another lawyer to file my motion again.
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Posted by anonymous | June 17, 2016
This review is from a person who hired this attorney.
| Hired Attorney
Do not recommend
Attorney Mastrianni did absolutely nothing to further my custody case. He agreed on terms of my ex's attorney, without even consulting me. He did not offer a single legal advise that would constructively resolve my issues and did not answer my e-mails in a timely manner. Luckily, I had enough time to find a more competent person. I do not reccomend this attorney. Waste of your money.
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AVVO RATING 7.2 (Very Good)

Work Experience

  • Attorney
  • Mastrianni & Seguljic, LLC
  • 1998 - Present


  • University of Bridgeport School of Law
  • JD - Juris Doctor
  • 1983

Languages Spoken

  • English

Honors and Awards

  • Distinguished
  • Martindale-Hubbell
  • 2017

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Plainville Divorce and separation Lawyer Michael W Mastrianni
Michael W Mastrianni
Divorce and separation Attorney
Plainville, CT
Licensed for 40 years