Skip to main content
Dianne N Sullivan

Dianne N Sullivan

Practice areas:

Divorce & Separation, Family, Child Custody

Practice Areas

Licensed since 2000

  1. Divorce & Separation: 40%
    14 years
  2. Family: 35%
    14 years
  3. Child Custody: 25%
    14 years



Hourly ($285/hour)

Payment Types:

Cash, Check, Credit Card

Attorney Endorsements

11 total 

  • James Robert Schmillen

    I have had the opportunity to work with Dianne as opposing counsel and her work ethic, follow through, and knowledge of the law are second to none. Dianne has a wonderful and respected presence in the courtroom, and is effectively able to convey her client's position.


    James Schmillen Family Attorney
    Relationship: Opposing Counsel on matter

  • Alex H Lane

    Dianne is an excellent lawyer and a caring individual. I strongly recommend her.


    Alex Lane Criminal Defense Attorney
    Relationship: Co-worker

Contact Info

Stewart & Lane, PLC

1490 S. Price Road
Suite 215
Chandler, AZ, 85286



AZActive 200005/23/2015

Professional Misconduct

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

Avvo Contributions

Legal Answers


Award NameGrantorDate Granted
Pro Bono Services AwardSeton Hall University1997

Work Experience

TitleCompany NameDuration
Associate AttorneyLaw Offices of Scott David Stewart, pllc2013 - Present
Assistant public defenderMaricopa County Office Of The Public Defenders2005 - 2007
Managing partnerSullivan Law Office PLLC2003 - Present
Assistant City ProsecutorCity Of Phoenix Prosecutor's Office2001 - 2003


Association NamePosition NameDuration
Arizona Attorneys for Criminal JusticeN/A2004 - Present
National Association of Criminal Defense LawyersN/A2004 - Present


School NameMajorDegreeGraduated