About Onello Law Group
Jason Onello
Attorney
Our Story
Onello Law Group was founded in 2017 by Jason Onello, Esq. Mr. Onello is lead attorney in all cases that come through his office and is always available for his clients; he is a litigation attorney with years of practice experience, primarily in Family Law, Personal Injury, and Probate litigation. Mr. Onello is known to be a highly technical attorney in the courtroom; details matter to him. Mr. Onello received awards for his legal writing in law school; it’s his passion and foundation for his practice. The entire office knows and appreciates what its founder wants: open communication, realistic expectations, and results-driven effort. In addition to his District Court caseload, Mr. Onello is also an appellate attorney, having succeeded on several appeals and “Writ Petitions” in front of the Nevada Appellate Courts. When Mr. Onello is not in the courtroom or in his office (which is rare), you can find him dangling from a rope hundreds of feet off the ground at Red Rock National Park or its surrounding area. Mr. Onello was born outside of Buffalo, New York; he is a big ice hockey fan, and enjoys the outdoors. He loves John Candy movies and listening to Jim Croce by a campfire.
Leslee Carrescia, Esq.
Attorney
Ms. Carrescia is an Associate Attorney at Onello Law Group, with a focus on family law and criminal defense. Ms. Carrescia combines strong advocacy with a practical, steady approach, guiding clients through difficult situations with clarity and care. After earning her juris doctorate in Las Vegas, Nevada, Ms. Carrescia clerked for the Eighth Judicial District Court, gaining valuable experience in a wide range of legal matters. Ms. Carrescia made her way to the courtroom through years of foundational professional experience, particularly in aviation. As a commercial pilot and flight instructor, she developed a high degree of focus and quick thinking; Ms. Carrescia is trained to be “calm under pressure,” which is benefit shared with her clients in the courtroom. Originally from Illinois, Ms. Carrescia moved to Las Vegas over a decade ago; she is proud to call it “home.” On the rare occasion that Ms. Carrescia is away from her desk or not in a courtroom, she enjoys spending time with friends, neighbors, and family—and rarely misses a chance to enjoy comfort food and country music.
Rebecca J
Paralegal
Rebecca is the newest addition of Onello Law Group and comes with experience in business management. Rebecca was born and raised in Las Vegas, but often traveled to Brazil to visit family and experience the culture. Rebecca has a passion for watching live music performances, reading and weightlifting. Rebecca loves sushi and Korean barbeque; she is a big fan of music (Led Zepplin and Deftones) and dancing the night away. What she likes most about law is trouble-shooting complex scenarios and lending clients an open ear.

