Nii Amaa Ollennu

Nii Amaa Ollennu

also known as Nii

4.1
Rating: 10.0

Licensed for 10 years

DUI and DWI Lawyer at Mckinney, TX
Practice Areas: DUI & DWI, Criminal Defense

1216 N Central Expy, Ste 208, Mckinney, TX

About Nii Amaa

Biography

Practice Areas

2

Practice Areas

Fees and Rates

Cost

Free Consultation

$0 first 30 minutes


Payment Methods

  • Cash
  • Check
  • Credit Card

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Licenses

Licensed in Texas for 10 years

State: Texas

Acquired: 2015

Eligible to Practice in Texas

No misconduct found

Location

Nii Amaa Ollennu Law Firm, PLLC.

1216 N Central Expy, Ste 208, Mckinney, TX, 75070

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Nii Amaa Ollennu's Reviews

Avvo Review Score

4.1 /5.0

18 Client Reviews

5 star (14)
4 star (0)
3 star (0)
2 star (0)
1 star (4)

Posted by anonymous | April 16, 2025 | Hired Attorney

This review is from a person who hired this attorney.

Awful

I hired Nii in 2019. He acted like a used car dealer. He might take your case, but soon—you’ll realize that he will not fulfill any of his obligations. He’s full of word salad. There are better attorneys out there. He’s rebranded himself several times.

Posted by anonymous | November 14, 2023 | Hired Attorney

This review is from a person who hired this attorney.

Lost

Nii Amaa where are you we haven’t heard from you. Always calling me from different numbers. I try calling the numbers that you call me from and blank can’t get through. We had a zoom meeting he didn’t send the link. I text him on the link he sent to me no response. I don’t have money to just give y...ou and you don’t respond. If you don’t wanna help please don’t take my money and don’t reply.

Posted by Alexis | April 20, 2021 | Hired Attorney

This review is from a person who hired this attorney.

Ni amma is legit

Nii amma is the best lawyer you will come across. He is knowledgeable and super helpful. He has always been there when I need him and very professional. HIGHLY RECOMMEND him to anyone looking for a A M A Z I N G lawyer.

Posted by Jason | August 14, 2020 | Hired Attorney

This review is from a person who hired this attorney.

Fulfilled his promise

Nii has fulfilled his promises on 2 cases for me. One of them being divorce and the 2nd was a false claim that he had dismissed for me. Nii is a truly amazing person and attorney! You're in great hands when Nii is on the case! Thanks Nii!

Posted by anonymous | August 12, 2020 | Hired Attorney

This review is from a person who hired this attorney.

If I could give him a 0 star I would

Custody case was very complex and needed a lot of knowledge and leg work. He did not do his job and I ended up forking out thousands of more dollars trying to fix his mistakes. He blew through my money, and did not do his job. I did basically everything and he even stated in court that he needed ...a continuance because he was not prepared. I will never forgive him for the emotional and mental destruction he has caused in our custody case.

See All Client Reviews

Nii Amaa Ollennu's Lawyer Endorsements

Endorse Nii Amaa
Adwoa Dankwaa Asante headshot
Adwoa Asante

Criminal defense lawyer | Jan 20

Relationship: Fellow lawyer in community

"Nii is a passionate and amazing criminal defense attorney who works hard for his clients. He is kind and he treats all his clients like family. That doesn't stop him from advocating aggressively for the best possible outcome for his clients."

LeeAnn Holt headshot
LeeAnn Holt

Unknown lawyer | Mar 29

Relationship: Worked together on matter

"Nii is passionate about the law and practices with his client's best interests at heart. I endorse this lawyer."

Taryn Marie Basauri headshot
Taryn Basauri

Litigation lawyer | Dec 18

Relationship: Friend

"I have never known a lawyer so passionate about obtaining the best result for his client. He acccepts cases because he wants to help and works tirelessly to that end."

Brandon Price Holt headshot
Brandon Holt

Criminal defense lawyer | Dec 11

Relationship: Worked together on matter

"I endorse this lawyer."

R. Walker Fults headshot
R. Walker Fults

Criminal defense lawyer | Mar 29

Relationship: Fellow lawyer in community

"Nii is a truly gifted, hardworking, intelligent, and experienced criminal defense attorney. It's obvious he is driven by a strong professional desire to obtain the very best outcome for his clients in every case. He has an affable nature, which quickly endears him to clients and other attorneys alike. I highly recommend Nii for any criminal matter in the North Texas area."

David S. Hughey headshot
David Hughey

Family lawyer | Dec 11

Relationship: Opposing Counsel on matter

"I endorse this lawyer as he was always prepared. He always advocated for his client until the very end. The thing that really makes a family law case move along at a pace that is good for the client is a lawyer like Mr. Ollennu who always timely returns calls and responds specifically to questions and proposals from opposing parties."

Carl David Ceder headshot
Carl Ceder

Criminal defense lawyer | Dec 05

Relationship: Fellow lawyer in community

"I fully endorse endorse Nii as an attorney. We tried a case together this year - and his help and insight proved invaluable to the case. Since then, I have had the privilege to get to know him even better. He exhibits deep compassion for his clients and their situation that can be very rare in the practice of law - especially in criminal defense. I can recall not too long ago - I read a Facebook post by him after a long, hard day of work at the courthouse where he expressed how "he only wished he could do more." To me - that summarizes his passion for practicing law, and the genuine concern and care he has for those he represents. He is a fine attorney, he is bright, intelligent, and as a fantastic future ahead as a lawyer. I am proud to call him a colleague, and a friend."

Michelle Rene Cheney headshot
Michelle Cheney

Family lawyer | May 18

Relationship: Opposing Counsel on matter

"I endorse this lawyer. Mr. Ollennu is a super sharp and very professional attorney. His passion for his clients really shows in the way he handles his cases. He went the extra mile to get his client's divorce completed in a reasonable time frame. His professionalism and responsiveness made working with him pleasurable and saved both our clients money because we had no need for unnecessary hearings or protracted litigation."

Jessica Lynn Vittorio headshot
Jessica Vittorio

Criminal defense lawyer | May 02

Relationship: Worked together on matter

"I have known Nii Amaa for many years, and have always had a positive experience working with him. He has always maintained a very professional demeanor, and I can always be assured he will provide informed, and effective, counsel. I highly recommend him and his firm."

Avery Blake Rudd headshot
Avery Rudd

Family lawyer | Apr 29

Relationship: Opposing Counsel on matter

"Mr. Ollennu truly cares about his clients. I would highly recommend him for anyone seeking quality legal services."

Jason C. Pollack headshot
Jason Pollack

Family lawyer | Apr 16

Relationship: Fellow lawyer in community

"He is an excellent attorney . He has the knowledge and bravado to handle any Courtroom situation. Not only do I endorse this attorney, but II would definitely want him in my corner."

Christopher J Mutimer headshot
Christopher Mutimer

Criminal defense lawyer | Apr 12

Relationship: Fellow lawyer in community

"A fantastic courtroom fighter. I you find yourself backing into a corner, call Nii Amaa."

Neal P. Flagg headshot
Neal Flagg

Family lawyer | Mar 23

Relationship: Fellow lawyer in community

"I endorse this lawyer. Nii Amaa has a great temperament for handling family law cases. He truly cares about his clients and puts their needs first."

Evan S. Mortimer headshot
Evan Mortimer

Criminal defense lawyer | Mar 23

Relationship: Worked together on matter

"Nii-Amaa is a fantastic attorney and an even better person. He is diligent, hard working, and responsive. I highly recommend him."

View All Endorsements
Adwoa Dankwaa Asante headshot
Adwoa Asante

Criminal defense lawyer

Brandon Price Holt headshot
Brandon Holt

Divorce and separation lawyer

R. Walker Fults headshot
R. Walker Fults

Criminal defense lawyer

Carl David Ceder headshot
Carl Ceder

DUI and DWI lawyer

Justin Barrett Wilson headshot
Justin Wilson

Criminal defense lawyer

David S. Hughey headshot
David Hughey

Family lawyer

Russ Alan Baker headshot
Russ Baker

DUI and DWI lawyer

Michelle Rene Cheney headshot
Michelle Cheney

Family lawyer

Jason C. Pollack headshot
Jason Pollack

DUI and DWI lawyer

Meredith Mochel headshot
Meredith Mochel

Criminal defense lawyer

Christopher J Mutimer headshot
Christopher Mutimer

DUI and DWI lawyer

Neal P. Flagg headshot
Neal Flagg

Personal injury lawyer

Jessica Lynn Vittorio headshot
Jessica Vittorio

Business lawyer

Evan S. Mortimer headshot
Evan Mortimer

Criminal defense lawyer

Experience

Rating:  10.0 (Superb)

Honors

2024

2024 Rising Stars, Texas Super Lawyers Magazine

2023

2023 Rising Stars, Texas Super Lawyers Magazine

2022

2022 Rising Stars, Texas Super Lawyers Magazine

2021

2021 Rising Stars, Texas Super Lawyers Magazine

2020

Top 40 Under 40, National Trial Lawyers Association

2020

Top 100 Trial Lawyers, National Trial Lawyers Association

2019

Collin County Attorney of the Year - Runner Up, Legal Aid of Northwest Texas

2018

Best DUI Lawyers in Plano, Expertise

2018

Top 40 Under 40, American Academy of Attorneys

2017

Texas Criminal Trial College Participant, Texas Criminal Defense Lawyers Association

2017

"10 Best Attorneys" for Texas, American Institute of Criminal Law Attorneys

2016

Best DUI Lawyers in Plano, Expertise

2016

Member, Texas Bar College

2016

DUI Detection & NHTSA SFST Practitioner Course, Anthony Palacios

2015

Best DUI Lawyers in Plano, Expertise

Work Experience

2015 - Present

Managing Partner, Nii Amaa Ollennu Law Firm, PLLC.

2016 - 2017

Managing Partner, Ollennu & Rudd Law, PLLC.

2014 - 2015

Limited Licensed Attorney/Intern, University of Idaho Legal Aid Clinic

2014 - 2014

Limited License Attorney, Canyon County Public Defender's Office

2013 - 2013

Legal Intern, Dallas Public Defender's Office

Associations

2020 - Present

Texas Opportunity & Justice Incubator

Member

2016 - Present

DUI Defense Lawyers Association

Member

2016 - Present

National College of DUI Defense

Member

2016 - Present

Collin County Criminal Defense Lawyers Association

Member

2015 - Present

State Bar of Texas

Member

2015 - 2016

American Bar Association Law School Division

12th Circuit Lt. Gov. of Communication and Membership

Education

2015

University of Idaho College of Law

JD - Juris Doctor

2012

St Mary's University of San Antonio

MA - Masters

2011

University of Texas System, El Paso

BA - Bachelor of Arts

Speaking Engagements

2021

TOJI Workshop

Help! I've been Grieved! What Every Lawyer Needs to Know About the Texas Grievance System

Languages

English

Activity

Avvo Rating

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  • Experience & background Years licensed, work experience, education
  • Legal community recognition Peer endorsements, associations, awards
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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