Dianne E. Ricardo headshot
900 Elm Street
10th Floor
Manchester, NH 03101
Tel: 603 628 1280

Dianne E. Ricardo

Associate, Litigation Department

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Dianne is a trial lawyer with substantial experience and expertise handling contested probate and fiduciary claims, including guardianships, trust and will contests, power of attorney accountings, and other probate litigation.   Representative cases include: 

  • Breach of fiduciary duty, self-dealing, constructive trust, and unjust enrichment   claims against trustees, attorneys-in-fact, and other fiduciaries
  • Will and trust contests involving claims of incapacity and undue influence 
  • Estate disputes regarding determination of heirs
  • Accounting actions against fiduciaries
  • Challenges to the validity of trust amendments
  • Enforcement of divorce decrees requiring trust establishment and funding
  • Contested and uncontested guardianships
  • Commercial litigation for the benefit of a ward
  • Pecuniary benefit transactions for charitable organizations


In addition, Dianne has experience and expertise in general commercial litigation, including contract disputes, employment actions, and education matters. 

Dianne dedicates many hours each year to representing low-income individuals through the New Hampshire Bar Association’s Pro Bono Program.  She is a prior winner of the Jack B. Middleton Pro Bono Legal Services Award for her demonstrated commitment to providing legal services to New Hampshire’s low-income and underprivileged citizens.


  • New England School of Law, J.D., cum laude, 2009
    • Trustee Academic Scholarship
    • New England Scholar
    • CALI Excellence for the Future Award recipient in Employment Law
  • Massachusetts College of Liberal Arts B.A., summa cum laude, 1999
    • Alpha Chi National Honor Society
    • Thomas and Jean Price Memorial Scholarship
    • Massachusetts College of Liberal Arts Scholarship 


  • New Hampshire
  • Massachusetts
  • Maine
  • District of Columbia


Federal Court:

  • District of New Hampshire
  • District of Massachusetts
  • District of Maine


  • New England Super Lawyers Rising Star (2017-2019)


  • New Hampshire Bar Association, Member
  • Massachusetts Bar Association, Member
  • Women’s Bar Association of New Hampshire, Member
  • New Hampshire Estate Planning Council, Member
  • New Hampshire Democratic Party, Voter Protection Program Articles

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The strengths of our practice groups and the industries we serve make McLane Middleton one of the most diverse law firms in New England.

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At McLane Middleton we establish and maintain long-standing relationships with our clients to help us better achieve their unique goals over time. This approach to building trust requires that our esteemed lawyers and professionals use their broad, in-depth knowledge and work together with integrity to ascertain sound resolutions to legal matters for their clients.

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McLane Middleton's versatile group of attorneys and paralegals become trusted authorities on each case through collaboration. We work with our clients to learn their individual needs first and foremost and, together, we develop comprehensive solutions to their specific legal matters. This approach helps us exceed our clients' expectations efficiently and effectively, client by client, case by case.

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McLane Middleton was established in 1919 in New Hampshire, and has five offices across two states. However, deep historical roots don't allow you to become innate. Our firm is organized, technological, and knowledgeable. Our history means we are recognized. But our reputation is built on the highest quality of service and experience in very specific areas of law.

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Our team continuously seeks opportunities to enhance their professional development and put key learnings to action. The pursuit of further insight guides us to volunteer service opportunities, speaking engagements, and teaching roles. Our lawyers are sought after thought leaders across their industries, and recipients of leadership awards throughout the region.