Attorney Rosen was described by a client as “the example of a true winner” and an “advocate who will be there in the clutch situations...I highly recommend anyone fighting a criminal defense or speeding/traffic ticket to hire Mr. Rosen and he will deliver mvp results!” Another client described Rosen as “one of NJ’s finest attorneys” where he further detailed that Rosen “went above and beyond to prove I was innocent”. One client even commented that “Mr. Rosen was relentless during the initial negotiation with the prosecutor.” Even his looks don’t go unnoticed as one client wrote, “I call him Ryan Gosling”, while another commented, “[w]ith all due respect, so darn cute too!”
Rosen has tried numerous cases. He has has stood 'toe to toe' at trial against current and former prosecutors, certified criminal and civil trial attorneys, as well as a certified matrimonial attorney. One client wrote that at trial “Brett was thorough and methodical and his aggressive questioning of the [victim] resulted in the judge finding that her complaint was completely without credibility.” A client also wrote that he "won the  case and was very dominate in [his] cross examination and would not give up until the truth was told." Another client describes Rosen’s representation during trial as “on point”, and added “I was very impress[ed].” Even other attorneys comment on his trial skills. For example, "Brett and I tried a case against each other in front of a Bergen County jury. He was professional as an attorney and a very effective litigator with the jury." Another attorney described him as "professional, well prepared and conducted a well thought out cross-examination and trial."
Rosen is no stranger to some high-profile cases since he's handled a case where the alleged victim was a former reality star and got it dismissed. He also represented a celebrity on their domestic violence case as well as a Grammy-Award winning artist on their drug cases.