Tel: (416) 847-2560 x242 | gstein@lcp-law.com

Gabriel Gross-Stein is a partner at Lockyer Posner Craig. He is a fierce advocate and is passionate about your defence. He has had success at all levels of Court in Ontario. His extensive preparation, skill, and experience lead to great results in the courtroom. He has won trials in every category of criminal offences, from impaired driving and fraud to sexual assaults and first-degree murder. He advocates strongly for your position, whether it is before a judge or a jury. You can be sure that you will receive the best possible defence with him.

Gabriel wants to see you acquitted. He wants your charter rights protected. He will pursue every avenue, every possible defence, to ensure the best result possible for you.

Gabriel graduated from the University of King’s College with an honours degree in Classics in 2008. He completed his Juris Doctor at Osgoode Hall Law School in 2012 and was called to the Bar of Ontario in 2013.

At Osgoode Hall, Gabriel developed an intense focus on criminal law. He was a member of the Innocence Project, which seeks to exonerate those who have been wrongfully convicted.

After graduating, Gabriel articled with Lockyer Posner Craig and joined the firm as an associate. Having practiced with the firm for his whole career, and having achieved great results in and out of the courtroom, he was made a partner in 2019.


Gabriel has a strong record of success when contesting matters in court and is fiercely dedicated to achieving the best results. He has successfully defended clients charged with both Criminal Code and Controlled Drugs and Substances Act offences. He also regularly obtains withdrawals for his clients. Gabriel regularly appears at all levels of Court in Ontario, from the Ontario Court of Justice to the Ontario Court of Appeal. He secures excellent results for his clients.


J.D., Osgoode Hall Law School, 2012
B.A., Honours in Classics, University of King’s College, 2008

Call To The Bar

Ontario 2013

Professional Memberships

Criminal Lawyers Association
Toronto Lawyers Association
Tag: Toronto Criminal Lawyer

  •  Notable Cases
    • R. v. Wilson
      After having been convicted of first degree murder at his first trial with different counsel, Mr. Gross-Stein had Mr. Wilson acquitted of first degree murder in 2019, after a six week trial.

      R. v. Zagrodnik
      Mr. Gross-Stein’s client was acquitted of drug charges after fentanyl and heroin was excluded from evidence on the basis of breaches of his client’s rights under the Charter.

      R. v. Powell
      Mr. Gross-Stein’s client was acquitted by a Jury in the Brampton Superior Court of importing 3 kilograms of cocaine into Canada.

      R. v. Robinson
      Mr. Gross-Stein’s client was acquitted of conspiracy to traffic in guns despite having admitted, in text messages, that he wanted to sell the weapons.

      R. v. McManus
      A new trial was ordered by the Ontario Court of Appeal after Mr. Gross-Stein successfully argued the client’s original trial was not fair, and that police evidence was biased.

      R. v. P.B.
      Mr. Gross-Stein successfully applied for disclosure of the complainant’s therapeutic records, after which the Crown withdrew the charges against his client.

      R. v. Grant
      Mr. Gross-Stein’s client sentence was reduced by 3 years following a successful appeal of his sentence.

      R. v. D.D.
      Mr. Gross-Stein secured an acquittal of a minor on charges of possession of a firearm after extensive cross-examination of the Crown’s firearms expert from the Centre of Forensic Sciences. The trial judge found that the expert’s conclusions were not sufficiently reliable and acquitted the accused.

      R. v. Cain
      Following a lengthy Superior Court trial Mr. Gross-Stein’s client was acquitted of robbery with a firearm. A lengthy and effective cross-examination of the complainant resulted in a finding that she was not a credible witness.

      R. v. M.D.
      Mr. Gross-Stein’s client was acquitted of sexual assault and sexual interference after a Superior Court trial. After cross-examination, the complainant’s evidence was found to be insufficiently reliable.

      United States v. Amadi
      Mr. Campbell and Mr. Gross-Stein successfully argued for the release of disclosure critical to their client’s case when the Crown was refusing to provide it.

      R. v. Purewal
      Mr. Posner and Mr. Gross-Stein successfully appealed the accused’s conviction for impaired driving. After the successful appeal, the charges against the accused were withdrawn.

      R. v. Papasotiriou
      Mr. Lockyer, assisted by Mr. Gross-Stein, successfully argued that the accused should not be committed to stand trial for first degree murder. The Toronto Star reported on that case here.