Jeffery is certified as a Specialist in Family Law by The State Bar of California Board of Legal Specialization.  His family law practice focuses exclusively on consensual dispute resolution, including mediation, collaborative divorce and non-litigation consulting.  Los Angeles Magazine recognized him as a Super Lawyer for 2011 – 2019 and a Super Lawyers Rising Star for 2005 – 2010.  Jeffery was awarded a Eureka Award in 2019 by Collaborative Practice California.

Jeffery is a partner at Jacobson Scully, LLP, with offices in the South Bay and West Los Angeles.  He also serves as of counsel to the West Los Angeles family law firm of Shebby Hirashima LLP.  Prior to going into private practice in 2003, he served as Executive Director of Levitt & Quinn Family Law Center, a nonprofit law firm which provides family law services to low-income individuals in Los Angeles.  He began his legal career at the family law and mediation firm of Mosten & Tuffias.

Jeffery is the past chair of the Family Law Section of the Beverly Hills Bar Association.  He currently serves on the Executive Committee of the Family Law Section of the Los Angeles County Bar Association, the Board of Directors of the Los Angeles Collaborative Family Law Association and the Board of Directors of Levitt & Quinn.  He is a member of Los Angeles Westside Collaborative Divorce Professionals and A Better Divorce, interdisciplinary groups of professionals in Los Angeles and the South Bay committed to non-court solutions for family law matters.

Jeffery has delivered numerous presentations and served as a panelist in programs related to a variety of substantive family law issues, in addition to programs related to family law mediation and collaborative divorce, for the Los Angeles County Bar Association, Beverly Hills Bar Association, State Bar of California, Association for Family and Conciliation Courts, Los Angeles Collaborative Family Law Association, UCLA School of Law, Loyola Law School and many other entities.  Jeffery graduated summa cum laude from the University of California at Berkeley and received his J.D. from UCLA Law School in 1996.