Skip to main content

John Mario Acosta Jr.

Family Attorney at Valparaiso, IN

4.0   10 reviews
  • Licensed for 8 years
    State IN
    Acquired 2016
    Active in Good Standing No misconduct found

We have not found any instances of professional misconduct for this lawyer.

About John

Learn John’s areas of practice.


John M. Acosta Jr. was born and raised in Southern California. In July 1996, he enlisted in the United States Army. He served as a Military Police Officer for almost two years, with his remaining three years as a Military Police K-9 Officer, at various military installations and was honorably discharged. In 2001, he pursued a career in law enforcement. He spent almost twelve years with various Police and Sheriff’s Offices throughout the State of Georgia. During that time, he worked as a patrol officer and was eventually promoted to the rank of Sergeant. As a U.S. Army Military Police Veteran and Law Enforcement Officer in State of Georgia, he has over 15 years of combined law enforcement experience. During those years he performed numerous DUI, misdemeanor, and felony investigations. Additionally, he has worked as a Deputy Prosecuting Attorney and Chief Deputy Prosecuting Attorney for the State of Indiana and has conducted numerous state court bench and jury trials. Although, he does not consider himself an expert, he does consider himself highly qualified to interpret and evaluate law enforcement actions.


This profile and/or website are intended for general information and advertising purposes only. Nothing on this site should be taken as legal advice for any individual case or situation. Any communication with us through the use of this website and/or profile does not constitute or intended to create, an attorney-client relationship. We strongly encourage you to consult an attorney of your choosing to thoroughly review your legal issues. Once you select and retain an attorney of your choosing that is when an attorney-client relationship begins.




Acosta Law Office, P.C.
205 East Jefferson Street
Valparaiso, IN, 46383-5637

Family lawyers nearby


4.0 / 5.0
  10 customer reviews
Posted by Marisa | October 4, 2021
This review is from a person who hired this attorney.
| Hired Attorney
Excellent Attorney
John Acosta has absolutely changed my life. When I found myself in a bit of legal trouble, I tried calling a bunch of different attorneys. When I had my consultation over the phone with John Acosta, I can honestly tell you that I have never felt more comfortable and well informed in my life. He took the time to let me speak and state my case as well as make sure I knew of every possible outcome that may or may not happen. I have never been in trouble with the law before and I had probably one too many questions, but he didn't get frustrated with me and made sure that I felt comfortable with our decisions moving forward. I am very happy with the outcome of my criminal case and I have been very blessed to have such a nice, wholesome and understanding attorney representing me throughout my case.
Read less
Posted by Tiffany | August 16, 2021
This review is from a person who hired this attorney.
| Hired Attorney
Great attorney
He handled everything I needed and it was done in a timely fashion. I even got a refund back once it was all done! I would hire him again. No problem!
Posted by anonymous | June 9, 2021
This review is from a person who hired this attorney.
| Hired Attorney
Name change
My mother hired John Acosta to assist with the legalities of a name change. He took the time to explain the process and the issue was resolved easily with his help.
Posted by Marie | August 20, 2020
This review is from a person who hired this attorney.
| Hired Attorney
Would recommend Attorney Acosta
I recently hired John Acosta. John takes the time to prepare his clients, answer questions and concerns and has his clients best interest at heart. He has a wide experience in different fields working with different prosecutors offices and police departments and seems to have built a solid network in law in NWI. He is well versed in different areas of the law, ie criminal, family, and immigration. Very quick wit and prepared.
Read less
Posted by Robert | September 6, 2019
This review is from a person who hired this attorney.
| Hired Attorney
Visitation and Name change
Before I hired Attorney John Acosta Jr. I had nothing in my case. With his help everything changed. To make my story short, he helped me receive my full visitations, added me to my daughters birth certificate, and he helped me get my last name placed on the birth certificate. I will recommend Attorney John Acosta Jr. to everyone I know that needs a good lawyer. Attorney John Acosta Jr. I would like to thank you for all the help you gave me for my case.
Read less
Posted by anonymous | January 16, 2018
This review is from a person who hired this attorney.
| Hired Attorney
Outstanding attorney, very professional mad personable.
He took care of two cases for me. Minor emancipation to stop child support and a divorce.
Posted by anonymous | September 3, 2016
This review is from a person who hired this attorney.
| Hired Attorney
John is knowledgeable on the topic at hand, direct and to the point. He has the ability to keep the client on point and ALWAYS stays within the interest of the client and what is ultimately best for them. Once on task, his main goal is a quick resolution resulting in an agreement that s ultimately fair for all. I am extremely satisfied with the service provided and the dissolution agreement reached with his representation in the courtroom.
Read less
Posted by Janet | February 9, 2020
This review is from a person who hired this attorney.
| Hired Attorney
Fair and competent
I found myself involved in an unexpected legal matter this past fall. I didn’t know who to turn to. I was concerned and needed a lawyer. This one lawyer had good ratings so I called. It was the best call I ever made. Mr. Acosta listened to what I had to say, gave me great advice. He also told me his fee upfront and what might happen. He was very reassuring and prepared. Not having dealt with the legal system in any capacity previously, it was intimidating to say the least. Well, we won. I paid a retainer fee initially which I felt was very fair and then he told me I may get money back. When all was said and done, I received money back! I feel I received not only excellent advice and representation but was dealing with someone who was fair both in pricing and in practicing law as well. I highly recommend Mr. Acosta.
Read less
Posted by Chris W. | July 3, 2022
This review is from a person who hired this attorney.
| Hired Attorney
Extremely pricey and no result
Hired him to represent me in a child custody case where he did nothing and accomplished nothing. Billed me continually including to send out statements. Insanely expensive and incompetent. Always threatening to drop my case just prior to hearings even when they were just continued and he knew beforehand unless I paid. Your initial retainer will not be enough.
Read less
Posted by anonymous | September 24, 2021
This review is from a person who hired this attorney.
| Hired Attorney
Terrible attorney. Takes advantage of peoples unfortunate situations
The initial consultation and two phone calls made by him on my behalf was $1500. Then John said if i didnt pay him another $1500 he was going to drop me directly before my court date
View less reviews


  • Free Consultation 30 minutes
  • Hourly Rates $ 250-250 per hour
Payment methods
Cash, Check, Credit Card


AVVO RATING 7.7 (Very Good)

Work Experience

  • Owner/Attorney
  • Acosta Law Office P.C.
  • 2016 - Present
  • Chief Deputy Prosecuting Attorney
  • Starke County Prosecutor's Office
  • 2019 - 2019
  • Deputy Prosecuting Attorney
  • Porter County Prosecutor's Office
  • 2016 - 2018
  • Certified Legal Intern
  • Bockman & Associates, LLC
  • 2015 - 2016
  • Certified Legal Intern
  • Lake County Public Defender's Office
  • 2015 - 2015
  • Certified Legal Intern
  • Porter County Prosecutor's Office
  • 2015 - 2015
  • Certified Legal Intern
  • Indiana Federal Community Defenders
  • 2015 - 2015
  • Judicial Intern
  • Honorable William Alexa
  • 2014 - 2014
  • Summer Intern
  • Lake County Prosecutor's Office
  • 2014 - 2014
  • Summer Inter
  • Porter County Prosecutor's Office
  • 2014 - 2014
  • Criminal Justice Instructor
  • Georgia Military College
  • 2012 - 2013
  • Deputy Sheriff
  • Rockdale County Sheriff's Department
  • 2010 - 2012
  • Deputy Sheriff
  • Butts County Sheriff's Office
  • 2004 - 2009
  • Deputy Sheriff
  • Fayette County Sheriff's Office
  • 2003 - 2004
  • Police Officer
  • Jonesboro Police Department
  • 2001 - 2003
  • Military Police K-9 Officer
  • U.S. Army
  • 1996 - 2001
View all work experience


  • Valparaiso University Law School
  • JD - Juris Doctor
  • 2015
  • Troy University
  • MA - Masters
  • 2012
  • Troy University
  • BS - Bachelor of Science
  • 2010


  • Porter County Bar Association
  • Member
  • 2015 - Present
  • Georgia Peace Officer Standards and Training Council
  • Member
  • 2001 - Present
  • Indiana State Bar Association
  • Member
  • 2016 - 2018
  • Lake County Bar Association
  • Member
  • 2014 - 2018
  • Calumet American Inn of Court
  • Member
  • 2014 - 2018
View all associations

Languages Spoken

  • English
  • Spanish


View all publications

Speaking Engagements

  • Ivy Tech Community College Classroom Discussion
  • Criminal Justice System
  • 2018
  • Valparaiso University Bar Prep Panel
  • Bar Prep Strategies
  • 2017
  • Law Practice Management (Solo/Small Firms)
  • Law Practice Management
  • 2017

Attorney endorsements

Received (2)
Given (3)
Endorse John
Criminal defense Attorney | Nov 17
Relationship: Fellow lawyer in community
"I endorse this lawyer."
Criminal defense Attorney | Jul 20
Relationship: Supervised lawyer
"I endorse this lawyer."
Personal injury
Criminal defense