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William N. Sosis

Family Attorney at Rochelle Park, NJ

5.0   2 reviews

also known as Sosis Law, LLC

  • Licensed for 9 years
    State NJ
    Acquired 2014
    Active No misconduct found

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

About William

Learn William’s areas of practice.

I provide a professional, caring and cost-conscious environment where you can feel comfortable and confident trusting us to handle your legal concerns. I am an experienced attorney licensed in the state of New Jersey and practicing family law, consumer law, internet and cybersecurity law, among other topics.  I hold a bachelors degree from Montclair University, a masters degree from NJIT and a Juris Doctor from Western Michigan University, Cooley Law School. My practice includes all matters relating to family law and divorce, domestic violence, child custody, consumer law, consumer fraud, estate planning, administrative law, internet law as well as other general matters. I have successfully appeared before the Family-Part as well as the New Jersey Appellate Division. I am an instructor for New Jersey Continuing Legal Education courses in e-discovery, cybersecurity, internet privacy and am an expert for IT-related matters.

In addition to my legal experience, I have also worked for many years in several industries. I believe all my experiences and the countless people I have helped provide me with the empathy and ability to understand the disappointment, emotions, and frustrations you may be experiencing from your legal issues.

I am confident that I can help where others may have failed.


Sosis Law, LLC
151 West Passaic Street, 2nd Floor
Rochelle Park, NJ, 07662

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5.0 / 5.0
  2 customer reviews
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1 Star
Posted by Behrang | January 24, 2018
This review is from a potential client who consulted with this attorney.
| Consulted Attorney
Awesome lawyer
I had one specific question for this lawyer so I consulted with him, and he gave me the most direct concrete possible answer that could possibly be given, that was also in fact in my favor. I highly recommend this lawyer.
Posted by Claudia | January 2, 2018
This review is from a person who hired this attorney.
| Hired Attorney
Trusted Lawyer
We hired Bill because we felt confident he could help us. He was very professional, compassionate and honest. We couldn't have won our case without his help, thank you Bill! We trust him and have recommended him to other friends. He gives Lawyers a good name.


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Contact for Details


AVVO RATING 7.0 (Very Good)


  • Western Michigan University Cooley Law School
  • JD - Juris Doctor
  • N/A
  • Montclair State University
  • BS - Bachelor of Science
  • N/A
  • New Jersey Institute of Technology
  • MA - Masters
  • N/A

Languages Spoken

  • English
  • Spanish


  • Your Do-it-Yourself Guide to Legal Investigations
  • Your Do-it-Yourself Guide to Legal Investigations
  • 2017

Speaking Engagements

  • Your Do-it-Yourself Guide to Legal Investigations
  • Legal Investigations
  • 2017
  • Mobile Device Discovery: Getting What You Want and Using What You Get
  • Mobile Device Discovery
  • 2017
  • Internet law updates: privacy, net neutrality, free speech/bullying and law firm security
  • Internet Law
  • 2017
  • Cyber Security - Best Practices for Law Firms
  • Cyber Security
  • 2017
View all speaking engagements

Attorney endorsements

Received (1)
Given (1)
Endorse William
Internet Attorney | Dec 30
Relationship: Worked together on matter
"I endorse this lawyer."