Jonathan Leinheardt

Jonathan Leinheardt

5.0
Rating: 8.4

Licensed for 34 years

Litigation Lawyer at Boulder, CO
Practice Areas: Litigation, Elder Law, Probate ... +2 more

250 Arapahoe, Suite 301, Boulder, CO

About Jonathan

Biography

Practice Areas

5

Practice Areas

Litigation 30%

28 years

30%
Elder Law 25%

28 years

25%
Probate 25%

27 years

25%
Family 10%

21 years

10%

Fees and Rates

We have not found any cost information for this lawyer


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Licenses

Licensed in Colorado for 23 years

State: Colorado

Acquired: 2003

Active

No misconduct found

Licensed in New York for 34 years

State: New York

Acquired: 1992

Currently Registered

No misconduct found

Location

Law Offices of Jonathan Leinheardt

250 Arapahoe, Suite 301, Boulder, CO, 80302

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Jonathan Leinheardt's Reviews

Avvo Review Score

5.0 /5.0

2 Client Reviews

Filter Avvo Reviews (2) Refine reviews to match your needs. Use the filters to quickly surface reviews that align with your case or priorities.

Showing 1 - 1 of 1 review | Mediation

Posted by Heather | January 17, 2026 | Hired Attorney | Mediation

Jonathan is the lawyer you NEED!

If you want the absolute BEST attorneys your search ends here with Jessica Catlin and Jonathan Leinheardt at Strickler Catlin LLC. During what was undoubtedly one of the most difficult, devastating, challenging times of my life, this brilliant legal team proved to be invaluable. They are truly mast...ers of their craft and they operate with unparallel legal prowess, sensitivity and grace. The genuine care and empathy shown allowed me to feel seen and understood. Their brilliance, professionalism, and timely communication helped alleviate my stress during a very emotional process, but more importantly Jessica and Jonathan are excellent, highly experienced litigators which is an extremely important trait that should NOT be overlooked when selecting an attorney. My probate case was exceedingly complicated, much more so than originally anticipated. This superb team did not miss a beat, they understood the details thoroughly, expertly preparing documents and filings tailored to my very specific needs. My multitude of questions was met with patience followed by thorough explanations. The entire team took the time to review and explain absolutely everything I needed to know, and they expertly prepared me for mediation, hearings and a possible trial. Mitzi the legal secretary and the paralegals Brenda O’Brien and Erica Slauson are phenomenal. I worked primarily with Brenda but was grateful that when she was out on vacation Erica stepped in to help in her absence. That’s the thing about a great team; they work seamlessly with one another. I think it’s also important to mention that despite being fierce, formidable litigators, Jessica and Jonathan operate with decorum, treating opposing counsel and opposing counsel’s clients respectfully. Trust me when I tell you, that a lawyer that does not hold themselves or their client(s) to this same standard comes across as unprofessional, angry, cruel and disrespectful, which is not a good look and will NOT help your case. In the end, because of Jessica, Jonathan and their incredible legal team, a feeling of helplessness was transformed into one of being supported, respected, and heard. They gave me a voice, provided a safe haven, gave me a coat of armor and allowed me to have hope. They re-humanized me by empowering me with a qualified team of professionals, by believing in me and my case and advocating for my rights. They looked out for me when the people that were supposed to didn’t, which is not only a testament to their character, but also to their commitment to humanity and justice. It was truly a pleasure and a privilege to have such fine individuals in my corner. I am profoundly grateful for the entire team at Strickler Catlin LLC, and I highly recommend them!

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Jonathan Leinheardt's Lawyer Endorsements

Endorse Jonathan
Autumn Charlie Scardina headshot
Autumn Scardina

Family lawyer | Jan 21

Relationship: Opposing Counsel on matter

"I endorse this lawyer. He tenaciously represented a difficult client on a difficult case. While we were unable to reach a resolution, I respect his advocacy skills and legal acumen."

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No Endorsement Data Available Yet
This attorney hasn't created any attorney endorsements recently on Avvo.

Experience

Rating:  8.4 (Excellent)

Work Experience

2019 - Present

Partner, Stevens, Littman, Biddison, Tharp & Weinberg LLC

2007 - 2019

Associate, Stevens, Littman, Biddison, Tharp & Weinberg LLC

2004 - 2007

Associate, Stiner, Beck, Jonson & Nolan

1997 - 2003

Owner/Manager, Law Offices of Jonathan Leinheardt

1992 - 1997

Assistant District Attorney, Queens County District Attorney's Office

Associations

2017 - Present

Boulder County Bar Association

Co-Chair of Elder Law Committee

2004 - Present

U.S. District Court District of Colorado

2003 - Present

Colorado Bar Association

1993 - Present

U.S. District Court Eastern District of New York

1993 - Present

U.S. District Court Southern District of New York

1993 - Present

U.S. Court of Appeals 2nd Circuit

Education

1991

Brooklyn Law School

JD

Languages

English

Avvo Rating

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  • Legal community recognition Peer endorsements, associations, awards
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  • 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
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