Katherine Sierra-Kelly

Katherine Sierra-Kelly

also known as Kathy Sierra-Kelly

4.4
Rating: 10.0

Licensed for 18 years

Divorce and separation Lawyer at Knoxville, TN
Practice Areas: Divorce & Separation, Family, Estate Planning, Mediation

200 Prosperity Dr, Suite 105, Knoxville, TN

About Katherine

Biography

Practice Areas

Fees and Rates

We have not found any cost information for this lawyer


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Licenses

Licensed in Tennessee for 1 year

State: Tennessee

Acquired: 2025

Active

No misconduct found

Licensed in Washington for 18 years

State: Washington

Acquired: 2007

Active

No misconduct found

Location

Gravis Law, PLLC

200 Prosperity Dr, Suite 105, Knoxville, TN, 37923

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Katherine Sierra-Kelly's Reviews

Avvo Review Score

4.4 /5.0

19 Client Reviews

Filter Avvo Reviews (19) Refine reviews to match your needs. Use the filters to quickly surface reviews that align with your case or priorities.

Showing 1 - 5 of 19 reviews

Posted by Michelle | August 27, 2021 | Hired Attorney | Divorce & Separation

The best

Katherine is amazing! Knowledgeable, attentive, doesn't forget anything important and most of all just a great person! She represented me on a very high conflict divorce, and despite it being expensive, it was not because of frivolous charges or her trying to over charge me. I highly recommend her fo...r any legal needs!!!

Posted by Mark | November 20, 2020 | Hired Attorney | Family

Amazing

I hired Katherine a few months back to represent me for my daughter in family court. In the short teleconference we had (about a half hour) prior to me hiring her, she had a game plan mapped out, what her planned outcome was, what the outcome may be at worst case scenario, and then what her fees were.... She delivered over and over again. Her knowledge of family law helped me out immensely over these past few months and was able to give me not only peace of mind, but also that needed humor that doesn’t often come about in family court. 10/10, would hire again.

Katherine Sierra-Kelly

Replied last November 20, 2020

Thank you so much for your kind words, Mark. I really appreciate you taking the time out to share your experience.

Posted by Kasey | March 31, 2020 | Hired Attorney | Child Custody

Honest and real

We hired Katherine to help is with a third party custody case. I wouldn't have anyone else represent us if I ever had to do this again. She listens to our concerns and applies them to come up with a way to voice them to the courts in a professional yet profound manner. She's honest from the get go in... telling us what to expect. Having Katherine in our corner has been a Godsend. She's extremely knowledgable and digs deeper if something is unclear. She's patient and empathetic yet assertive and confident. What makes Katherine so amazing and important to us is the fact that she's so down to earth. She's personable. She has a family and children too and understands how life can happen and the feelings and emotions that go right along with that. She's not just a "robot attorney", she's human and understands feelings but doesn't let it get in the way of her ability to fight the good fight in court on our behalf but more importantly for what's best for the children involved. Her heart is for the children and she never hesitates to prove that. Katherine will be our attorney for anything that comes our way in the future.

Posted by Emily | May 27, 2019 | Hired Attorney | Divorce & Separation

Wonderful

I am so great full for Katherine she is an excellent attorney and was great at showing me when I was being bulldozed and not to let that happen. I highly recommend her and her team for any of your needed law cases. Thanks to her I had a fair divorce :)

Posted by anonymous | May 10, 2019 | Hired Attorney | Lawsuits & Disputes

Poor Presenter

She was knowledgeable on subject matter and spoke well in her office. However when we got to court she fumbled with words and poorly presented my case. I know someone who represented themselves in a case against her and they won. She’s knowledgeable but didn’t handle the court room part well. In fact... it was just plain bad.

Katherine Sierra-Kelly

Replied last May 10, 2019

I am so sorry to hear this person felt this way about my representation. . I pride myself on working closely with my clients and arguing on matters both ethically and efficiently in the courtroom. Because this review is anonymous, however, I cannot confirm nor deny that this person is actually a client of Gravis Law or my own. If this individual wishes to reach out to me directly to discuss this matter further, they may do so at (509) 380-9102. I am always more than happy to discuss any issues or concerns with clients, as we take all feedback very seriously at Gravis.

See All Client Reviews

Katherine Sierra-Kelly's Lawyer Endorsements

Endorse Katherine
Allyson Michelle Dahlhauser headshot
Allyson Dahlhauser

Family lawyer | Nov 13

Relationship: Opposing Counsel on matter

"Katherine is well-respected by her peers and a zealous advocate for her clients. She is knowledgeable and dedicated to finding the best solutions for her clients. I endorse this lawyer."

Guy Brandon Zimmerman headshot
Guy Zimmerman

Family lawyer | Sep 09

Relationship: Opposing Counsel on matter

"Very knowledgeable throughout all stages of family law matters. I endorse this lawyer."

Jarrod Hays headshot
Jarrod Hays

Divorce and separation lawyer | Aug 06

Relationship: Opposing Counsel on matter

"Katherine is always prepared and works and fights hard for her clients. I know I am going up against someone well prepared when I see her on the other side of a matter."

Scott Kinshella headshot
Scott Kinshella

Family lawyer | Jul 26

Relationship: Opposing Counsel on matter

"I endorse this lawyer."

Sara M Herr-Waldroup headshot
Sara Herr-Waldroup

Family lawyer | Jul 19

Relationship: Opposing Counsel on matter

"Katherine is a skilled advocate for her clients and is easy to work with when she's on the other side. Katherine works hard to come to amicable solutions when possible and fights hard when it's not possible. I wholeheartedly endorse this attorney."

Brandon Price Holt headshot
Brandon Holt

Family lawyer | May 01

Relationship: Opposing Counsel on matter

"Katherine is very well prepared in court and provides her clients exceptional representation. I endorse this lawyer."

Stefanie Paola Valencia headshot
Stefanie Valencia

Unknown lawyer | Mar 06

Relationship: Worked together on matter

"Katherine is knowledgeable on all legal aspects impacting family law. She has a passion for our community and works tirelessly for her clients. I have work together with Katherine on matters. She is a trustworthy attorney and I can confidently refer clients to her. I endorse this lawyer."

Teresita Del Carmen Varela headshot
Teresita Varela

Family lawyer | Feb 12

Relationship: Co-worker

"Katherine is passionate about helping her clients and exploring all solutions possible in an effort to achieve the best outcome. I wholeheartedly endorse Katherine."

Derek Ray Johnson headshot
Derek Johnson

Family lawyer | Jan 25

Relationship: Co-worker

"Katherine is a passionate advocate for her clients. She is an exceptionally knowledgeable and experienced family law attorney."

Mathew Michael Purcell headshot
Mathew Purcell

Family lawyer | Aug 04

Relationship: Opposing Counsel on matter

"Katherine is a staunch advocate for her clients and does a great job with her Guardian Ad Litem work. She is very reasonable to work with on cases and does a good job finding creative solutions to what are emotionally complex problems. I endorse this lawyer."

Brittany Colette Larson headshot
Brittany Larson

Family lawyer | Aug 03

Relationship: Fellow lawyer in community

"Katherine is a knowledgeable and personable attorney. She is a very talented, hardworking and competent advocate for her clients. I endorse this lawyer."

Asa Chodesh LaMusga headshot
Asa LaMusga

Family lawyer | Aug 03

Relationship: Fellow lawyer in community

"Katherine is an outstanding advocate. She provides her years of family law experience, integrity, and zealous advocacy to each of her clients. I endorse this lawyer."

View All Endorsements
Guy Brandon Zimmerman headshot
Guy Zimmerman

Divorce and separation lawyer

Michael Stephen Prince headshot
Michael Prince

Family lawyer

Scott Kinshella headshot
Scott Kinshella

Divorce and separation lawyer

Jarrod Hays headshot
Jarrod Hays

Family lawyer

Brandon Price Holt headshot
Brandon Holt

Unknown lawyer

Stefanie Paola Valencia headshot
Stefanie Valencia

Chapter 7 bankruptcy lawyer

Brett Michael Spooner headshot
Brett Spooner

Business lawyer

Teresita Del Carmen Varela headshot
Teresita Varela

Family lawyer

Experience

Rating:  10.0 (Superb)

Honors

2020

Top 10 Family Law Attorney, Attorney and Practice Magazine

2020

Top 10 Family Law Attorney, Best of the Best Attorney

2020

Top 10 Attorneys Under 40, National Academy Of Family Law Attorneys

2020

10 Best Attorneys, American Institute of Family Law Attorneys

2018

Top 40 Family Lawyer Under 40 In the State of Washington, The American Society of Legal Advocates

2018

10 best 2018 Family Law Attorneys for Client Satisfaction, American Institute of Family Law Attorneys

2017

Gene Schuster Award for Outstanding Service, Benton-Franklin Legal Aid Society

Work Experience

2017 - Present

Attorney, Gravis Law, PLLC

2008 - 2017

Attorney, Chvatal Law

Associations

2025 - Present

Knoxville Bar Association

Member

2025 - Present

Tennessee Bar Association

Member

2017 - Present

Benton Franklin Collaborative Family Law Group

Member

2015 - Present

Title 26 Guardian Ad Litem selection committee

Member

2008 - Present

Washington State Bar Association

Member

2008 - Present

Benton/Franklin Bar Association

Member

2021 - 2023

Benton-Franklin Counties Bar Association

President-Elect

2019 - 2024

Domestic Violence Services of Benton & Franklin Counties

Board Member

2013 - 2023

Benton Franklin Legal Aid

Board Member

2013 - 2015

• Benton Franklin Counties Bar Association Board of Governors

Trustee

2008 - 2016

American Bar Association

Member

Sample of Legal Cases

Child Custody

Mother was awarded full custody of the minor child. Father had to undergo an alcohol and substance abuse evaluation and follow all recommendations

Divorce

Favorable.

child Custody

Father was awarded custody of his daughter. Mother received limited visitation and was required to show verification of a suitable living arrangement prior to additional time with the child

See More Legal Cases

Education

2007

Seattle University School of Law

JD - Juris Doctor

2003

Walla Walla College

BA - Bachelor of Arts

Speaking Engagements

2017

Guardian ad Litem Certification Training

Professional conduct and ethics

2015

Guardian ad Litem Certification Training

Professional conduct and ethics

Languages

English

Spanish

Activity

Avvo Rating

Our Rating is calculated using information the lawyer has included on their profile in addition to the information we collect from state bar associations and other organizations that license legal professionals. Attorneys who claim their profiles and provide Avvo with more information tend to have a higher rating than those who do not.

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  • Experience & background Years licensed, work experience, education
  • 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
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