Diana Elizabeth Sims

Diana Elizabeth Sims

also known as Diana E. Sims, Diana Sims

4.8
Rating: 10.0

Licensed for 26 years

Criminal defense Lawyer at Houston, TX
Practice Areas: Criminal Defense, Expungement

411 Fannin Suite 250, Houston, TX

About Diana

Biography

Practice Areas

2

Practice Areas

Criminal Defense 95%

We are an aggressive criminal defense firm that fights all types of criminal cases.

26 years

95%
Expungement 5%

It is crucial to explore all of your options when it comes to sealing your record or expunging your record. If your case was dismissed, you should seek an expungement. If you received deferred adjudication, you should seek a Non-Disclosure.

26 years

5%

Fees and Rates

We have not found any cost information for this lawyer


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Licenses

Licensed in Texas for 26 years

State: Texas

Acquired: 1999

Eligible to Practice in Texas

No misconduct found

Location

Law Offices of Diana Elizabeth Sims

411 Fannin Suite 250, Houston, TX, 77002

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Diana Elizabeth Sims's Reviews

Avvo Review Score

4.8 /5.0

101 Client Reviews

Showing 1 - 5 of 13 reviews | Communication Style

Posted by Kenny | November 16, 2025 | Hired Attorney | Lawsuits & Disputes

A Real Go Getter

I would like to take this moment to thank this attorney for the outstanding professional customer service in handling my case. From the first day she assured me that she would keep me informed and I would have no worries as she will work to bring this case to a positive end. Her communication skills... and key knowledge of the Texas Justice system really lifted my confidence that she was really on top of things. Keeping me informed, communicating with the court and staying ready at all times. She worked toe to toe with the court system.I am so thankful that I hired this attorney it was a great experience watching her work my case and bring it to a positive end. Thank you for a job well done.

Posted by FRANCISCO | August 14, 2024 | Hired Attorney | Criminal Defense

Probation

My younger brother broke probation and was facing prison time. Miss Diana took his case and fought for his case, the court gave her offers for my bother and she refused them because she wanted one that I want, she communicates with her clients both in the cell and out the cell to get the best results....

Posted by Radha | June 13, 2023 | Hired Attorney | Lawsuits & Disputes

Felony case victory

I highly recommend Diana Sims. She did an exceptional job for my case. She is very direct, very professional, and a shark in the court! She kept me in the loop the entire time and walked me through every single step of the case. She is a very formidable woman who got me justice!

Posted by Veronica | February 18, 2019 | Family

Very dedicated and committed to serve!

I reached out to Mrs. Sims coming across her number in my wallet. I usually hold on to (6+ yrs) what feels right and I am glad that I did. Mrs. Sims called back and we spoke briefly regarding a pending family issue that is very sensitive, and very concerning regarding future positive development an...d livelihood, because it has been some time, this matter has now affected work due to background checks, with no resolution in site & not knowing what the out come will be. Mrs Sims is very compassionate and understanding. She spoke clear and very precise. I was very relieved and excited after our conversation. As it turns out she is from the same community that we grew up in and devoted to help in anyway. Using her word "ironically" she was just thinking about case work. I always want to believe God is my guide, and calling from the Mother House of the Nuns (which is also in the same community) that day, HE was totally in control! Thank you for accepting to help, which has put some anxiety at ease, and I pray that God puts in motion what is in your control with his guidance and your care. With God all things are possible! Blessings

Posted by Holly | May 23, 2018 | Hired Attorney

Wonderful attorney!

I hope you never need an attorney. But if you do, Diana is the person to call. She is extremely knowledgeable, experienced and looks out for her clients' best interests. I know my son's case is in the best possible hands. So far I've only met with her once, but she was so good at explaining the proce...ss, being both direct and kind to my son, and answering questions. What a godsend!!

See All Client Reviews

Diana Elizabeth Sims's Lawyer Endorsements

Endorse Diana
Sean Reza Darvishi headshot
Sean Darvishi

Criminal defense lawyer | Apr 01

Relationship: Fellow lawyer in community

"I endorse this lawyer. Diana is a warrior in the fullest extent of the word. I have known her since I was in law school and she commands respect in a courtroom. I would highly suggest her services"

Mark Ryan Thiessen headshot
Mark Thiessen

Criminal defense lawyer | Mar 05

Relationship: Fellow lawyer in community

"Diana is a wonderful person and lawyer. She works very hard for her clients and knows the law. She will take good care of you. -Mark"

Lewis Ashton Thomas headshot
Lewis Thomas

Criminal defense lawyer | Feb 22

Relationship: Fellow lawyer in community

"I have known Diana Sims for over ten years. Diana fights hard for her clients and she knows the law."

Ben Pearce headshot
Ben Pearce

Criminal defense lawyer | Feb 21

Relationship: Fellow lawyer in community

"Diana is a hard working criminal defense attorney. I frequently see her in the courthouse working diligently for her clients. She displays a level of caring and confidence when arguing on behalf of her clients."

Tyrone Cedric Moncriffe headshot
Tyrone Moncriffe

Criminal defense lawyer | Feb 20

Relationship: Fellow lawyer in community

"I endorse this lawyer. Diana is an outstanding trial lawyer, always getting not guilty verdicts because of her tremendous skills and dedication to her craft, anybody who hires her has a true warrior who is well respected in the legal community"

Christopher Lee Carlson headshot
Christopher Carlson

Criminal defense lawyer | Feb 20

Relationship: Fellow lawyer in community

"I endorse Diana. She is as passionate as they come about righting wrongs. When you have her on your side, you have a true gladiator in your corner."

Penny Wymyczak-White headshot
Penny Wymyczak-White

Criminal defense lawyer | Feb 20

Relationship: Fellow lawyer in community

"Diana Sims is an experienced, highly respected attorney who always represents her clients with the utmost of skill,knowledge and understanding.i can readily endorse her without hesitation or reservation."

Jimmy Joe Ortiz Jr. headshot
Jimmy Ortiz

Criminal defense lawyer | Feb 19

Relationship: Fellow lawyer in community

"I have known Diana Sims for over 15 years and I have seen her zealously fight for her clients. She is certainly no push over when it comes to dealing with prosecutors. I certainly endorse her as an attorney."

Arthur Thomas Sims headshot
Arthur Sims

Criminal defense lawyer | Feb 19

Relationship: Family member

"I endorse this attorney. Diana is a passionate attorney who works hard to protect the rights of every client. She is a strong advocate and extremely knowledgeable of the law."

Jennifer Sims headshot
Jennifer Sims

Criminal defense lawyer | Feb 19

Relationship: Family member

"I endorse this lawyer. Diana is passionate about her work and clients. She has incredible experience and know how!"

Feroz Farook Merchant headshot
Feroz Merchant

Criminal defense lawyer | Feb 18

Relationship: Fellow lawyer in community

"I endorse this lawyer. Knowledgable and someone that always fights for her clients - getting great results."

Cheryl Shooks Brown headshot
Cheryl Brown

Criminal defense lawyer | Feb 18

Relationship: Fellow lawyer in community

"Diana is a fierce fighter for her clients. I've never seen her back down from a fight! I am happy to endorse this lawyer."

Mekisha Jane Walker headshot
Mekisha Walker

Criminal defense lawyer | Aug 09

Relationship: Friend

"I endorse this lawyer. Diana never backs down from a fight. She is strong and well respected. And her clients love her!"

Amy Michelle Carlin headshot
Amy Carlin

Criminal defense lawyer | Jul 03

Relationship: Fellow lawyer in community

"I endorse this lawyer."

View All Endorsements
Jeanie L. Ortiz headshot
Jeanie Ortiz

Criminal defense lawyer

Joseph Francis Vinas headshot
Joseph Vinas

Criminal defense lawyer

Eduardo "Eddie" Cortes headshot
Eduardo Cortes

Criminal defense lawyer

Jimmy Joe Ortiz Jr. headshot
Jimmy Ortiz

Criminal defense lawyer

Edward C. Okwueze headshot
Edward Okwueze

Criminal defense lawyer

Murray Newman headshot
Murray Newman

Criminal defense lawyer

Rand A. Mintzer headshot
Rand Mintzer

Criminal defense lawyer

Philip Michael Gommels headshot
Philip Gommels

Criminal defense lawyer

Maverick Ray headshot
Maverick Ray

Criminal defense lawyer

Penny Wymyczak-White headshot
Penny Wymyczak-White

Criminal defense lawyer

Jennifer Sims headshot
Jennifer Sims

Criminal defense lawyer

Arthur Thomas Sims headshot
Arthur Sims

Criminal defense lawyer

Mary E. Conn headshot
Mary Conn

Criminal defense lawyer

Cynthia Russell Henley headshot
Cynthia Henley

Criminal defense lawyer

Feroz Farook Merchant headshot
Feroz Merchant

Criminal defense lawyer

Tyrone Cedric Moncriffe headshot
Tyrone Moncriffe

Criminal defense lawyer

Christopher Lee Carlson headshot
Christopher Carlson

Criminal defense lawyer

Lewis Ashton Thomas headshot
Lewis Thomas

Criminal defense lawyer

Nathan Patrick Hennigan headshot
Nathan Hennigan

Criminal defense lawyer

Lisa Shapiro headshot
Lisa Shapiro

Criminal defense lawyer

Experience

Rating:  10.0 (Superb)

Honors

2022

Top 100 Trial Lawyers, National Trial Lawyers

2021

Top 100 Trial Lawyers, National Trial Lawyers

2020

Top 100 Trial Lawyers, National Trial Lawyers

2019

Top 100 Trial Lawyers, National Trial Lawyers

2018

Client Rating, Martindale-Hubbell

Work Experience

1999 - Present

Attorney, Law Office of Diana E. Sims

Associations

1999 - Present

Harris County Criminal Lawyers Association

Member

1999 - Present

Texas Criminal Defense Lawyers Association

Member

1999 - Present

Houston Bar Association

Member

Education

1999

University of Houston Law Center

JD - Juris Doctor

1996

University of Texas

BA - Bachelor of Arts

Languages

English

Activity

Avvo Rating

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Avvo Rating Levels
10.0 - 9.0 Superb8.9 - 8.0 Excellent7.9 - 7.0 Very Good6.9 - 6.0 Good5.9 - 5.0 Average4.9 - 4.0 Concern3.9 - 3.0 Caution2.9 - 2.0 Strong Caution1.9 - 1.0 Extreme Caution