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Demetrius Costy

Criminal defense Attorney at Oakland, CA

5.0   6 reviews
  • Licensed for 23 years
    State CA
    Acquired 1999
    Active No misconduct found

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

About Demetrius

Learn Demetrius’s areas of practice.

Practice area

The only reason I went to law school was to become a criminal defense attorney.  In 1999, I graduated from the University of San Francisco School of Law.  Everyday, for the last 20 years, I have proudly represented criminal defendants all over the Bay Area.

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Demetrius Costy Law
528 Grand Avenue
Oakland, CA, 94610


5.0 / 5.0
  6 customer reviews
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Posted by Chandrakanth Donikala | April 28, 2023
This review is from a person who hired this attorney.
| Hired Attorney
Best attorney Ever top notch criminal defense attorney.
The best Attorney ever ,life saver literally gods gift to dv case was dismissed Demetrius Costy handled my case very well and he is very decent & wise polite man with respect he was honest about my case and explained clearly what’s the outcome gonna be.he represented in court behalf of me and convince the District Attorney to dismiss my case and set me free with no jail time or no probation or no fines nothing…salute for this best man master piece of law.i recommend everyone who was going through hurdles like me to choose good attorney who is reasonable/responsible and who can fight for you and dismiss the charges Demetruis Costy is Number 1 best attorney In alameda more second thoughts. It could be a devastating miserable situation I would face if I didn’t choose Demetruis Costy.I may end up with jail or probation or fines.many attorneys focus on money and loot so the final result leads to minimal jail time or probation. But Demetruis truly stands with client and walk with you and make you win the case .highly highly recommended for everyone.thanks a lot Demetruis Costy .
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Posted by Felipe | December 20, 2021
This review is from a person who hired this attorney.
| Hired Attorney
Masterful, understated, highly regarded
After having been arrested, I asked a longtime friend with deep roots in Oakland’s Italian and Mexican communities for advise on retaining effective legal representation. Without hesitation, he shared Demetrius’ name with me. This resulted in the best possible outcome for me, with a complete dismissal of the charges. I feel I would be remiss in my responsibilities if I didn’t share my experience with Demetrius on AVVO. From the outset, I noted Demetrius’ understated manner and close attention to the details of my case. He was thorough in asking for details and developed a feel for both the case in its legal context, as well as developing a personal side to the equation by getting to know me as a person. I firmly believe these factors assisted in achieving the best possible outcome; a complete dismissal of charges and an end to the ordeal. I had occasion to observe Demetrius interact with a number of people in the business of law, as well as courthouse support staff. Every interaction revealed Demetrius to be an understated gentleman whose treatment of people. regardless of whether they were purveyors of law or working folk going about their duties, was quite refreshing as it was obviously being based on a history of respect and regard on the part of all concerned. After the initial court appearance, all further court business was handled by Demetrius. Case dismissed. My deep appreciation for the effort put into my case and its final disposition. My dear friend referred me to Demetrius Costy Law without hesitation or reservation, and I now join him in being able to, without hesitation or reservation, refer any client in need of a criminal defense attorney directly to Demetrius Costy Law. My thanks to Demetrius, an understated gentleman who has effectively served all the communities of Oakland and Alameda County for years.
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Posted by Daniel | February 11, 2020
This review is from a person who hired this attorney.
| Hired Attorney
The Real Deal
This guy was good- knowledgeable, responsive, confident and respected by everyone in court. The basic thing is the attorney is an expert and regular people that don't the law and court stuff are scared shitless of what the legal system can do to our lives. Demetrius stepped in and was an expert. He couldn't change the facts of my case, but he could make my rights count and bring to light the laws and options that benefited me to the court. I had alot going on at that time. He could see I was stressed and took the time to explain what was going on and what strategies he could employ to lessen the damage of my case. I really appreciated that approach. I would highly recommend him.
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Posted by Jess | December 6, 2019
This review is from a person who hired this attorney.
| Hired Attorney
Burglary Case
I was in need of an attorney after my boyfriend was arrested for burglary. Since we just had a new born and the holidays were right around the corner, I decided to seek for an attorney immediately. Mr. Costy was recommend by a close friend that retained him for herself. My bf was released the evening of his first court appearance with Mr. Costy as his attorney! Being able to come home allowed my bf to get a job and fight his case from the outside. As the investigation kept moving forward Costy reassured us he would do everything in his power to help my bf get the best deal. He kept us in the loop of things, took his time to explain the legal process during our office visits and promptly answered our phone calls. Since my bf has multiple felonies, Costy made sure to be genuinely honest & explain the severity of the situation. With Costy’s help my boyfriend’s deal resulted in 3 months of ankle monitor, while being allowed to work during the weekdays. We were able to spend the holidays and my son’s first birthday together. We are beyond grateful to have come across Mr. Costy. I highly recommend his services.
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Posted by Jessica | April 19, 2019
This review is from a person who hired this attorney.
| Hired Attorney
Demetrius Costy from the Beles & Beles Law Offices represented me. They are the best. I was nervous about the process. He explained everything and the outcome was great. Easy to talk to, respected by the court and a great staff.
Posted by anonymous | June 23, 2016
This review is from a person who hired this attorney.
| Hired Attorney
Worked hard
He cared about the case. He worked very hard. He was never unreachable for long and kept in contact. He listened to my concerns and ideas. He took the time to explain things to me. I believe he did give %100. Even tho I lost my case, I am very satisfied with his actions and behavior.
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  • Free Consultation 60 minutes
  • Retainer Always
Payment methods
Cash, Check, Credit Card


AVVO RATING 7.7 (Very Good)


  • University of San Francisco School of Law
  • JD - Juris Doctor
  • 1999
  • Loyola Marymount University
  • BA - Bachelor of Arts
  • 1994


  • USF Criminal Law Clinic
  • Guest Lecturer
  • 2018 - Present

Languages Spoken

  • English

Attorney endorsements

Received (6)
Given (8)
Endorse Demetrius
Criminal defense Attorney | Jul 24
Relationship: Fellow lawyer in community
"I endorse this lawyer."
Criminal defense Attorney | Jun 13
Relationship: Fellow lawyer in community
"I endorse Demetrius. He is a highly skilled attorney that is well respected in the legal community."
Criminal defense Attorney | Dec 14
Relationship: Co-worker
"I endorse this lawyer."
Criminal defense Attorney | Sep 16
Relationship: Co-worker
"I endorse this lawyer. Mr. Costy is a dedicated criminal defense attorney with years of experience. He handles some of the toughest cases in the Bay Area. Never gives in."
Criminal defense Attorney | Jul 07
Relationship: Worked together on matter
"I endorse this lawyer."
Criminal defense Attorney | Jul 07
Relationship: Co-worker
"I endorse this lawyer."
View more endorsements
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Avvo Contributions

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Oakland Criminal defense Lawyer Demetrius Costy
Demetrius Costy
Criminal defense Attorney
Oakland, CA
Licensed for 23 years
Free Consultation