Marie Avery Moses has been practicing family law exclusively since 1997. During her career, Marie has developed a reputation for providing thoughtful, compassionate, and sensible representation to clients facing complex and compelling family law problems. Marie enjoys working closely with clients to prepare and present cases for resolution through mediation or litigation.

Marie has been named as one of the top 100 attorneys in Colorado by Super Lawyers since 2010. She is also listed in the Best Lawyers in America. Marie is a Fellow in the American Academy of Matrimonial Lawyers and has received an A-V rating from Martindale Hubbell.

Prior to beginning her family law practice, Marie spent two years as a law clerk for the Honorable Edwin G. Ruland of the Colorado Court of Appeals. As a result of her experience on the Court of Appeals, Marie has developed an expertise in handling appeals in domestic relations cases, obtaining favorable results for clients as counsel for both appellants and appellees. Marie successfully argued three published cases, In re Marriage of Ohr, 97 P.3d 354 (Colo. App. 2004), In re Marriage of Moore, 107 P.3d 1150 (Colo. App. 2005), and In re Marriage of Schelp, 228 P.3d 151 (Colo. 2010). Marie lectures on appellate procedures for the Colorado Bar Association and has published “An Appellate Primer for Family Law Practitioners” in The Colorado Lawyer. Marie is a member of the Amicus Committee of the Colorado Chapter of the American Academy of Matrimonial Lawyers and has contributed to the most recent brief submitted to the Colorado Supreme Court by that organization on the issue of parental constitutional rights.

Marie has served as the Chair of the Family Law Section of the Colorado Bar Association, having been elected to this position by attorneys throughout the State of Colorado. Marie continues to serve as the Co-Chair of the Colorado Bar Association’s Family Law Section Legislative Committee where she has worked with members of the Colorado legislature to formulate and draft legislation pertaining to maintenance, parenting time, child support, paternity, domestic violence and grandparent and third-party visitation issues. Marie regularly testifies before Colorado House and Senate Committees regarding all areas of domestic relations. She served as the Co-Editor for The Colorado Lawyer’s Family Law column from 2002 to 2006, and chair of the Colorado Bar Association’s 2009 Family Law Institute.

Marie enjoys running, reading fiction, playing softball and trying to keep some semblance of order in her household which consists of her husband, David and their teenaged twins.

Representative Family Law Cases

Marie has represented clients in dissolution of marriage cases involving:

  • High conflict custody disputes, including circumstances of substance abuse, physical abuse, parental alienation and mental illness
  • Restrictions on parental rights
  • Complex asset valuation issues including business valuations, trust interests, family partnerships, and stock options
  • Valuing and tracing separate property interests
  • Tracing wasted marital assets
  • Establishing income of self-employed spouses for support purposes
  • Post-decree litigation to set aside Separation Agreements or Permanent Orders
  • Post-decree modifications of support and allocation of parental rights and responsibilities
  • Contempt proceedings
  • Establishment of trusts for the benefit of children

Additionally, Marie represents clients in non-traditional child custody disputes including cases involving:

  • Psychological parents
  • Grandparent requests for parenting time
  • Paternity disputes involving more than one presumed father
  • Disputes involving same-sex parents



Employment History

  • Lass Moses Ramp & Cooper LLC (Denver, Colorado): Member, April 2018-present
  • Lass Moses & Ramp LLC (Denver, Colorado): Member, August 2011-April 2018
  • Kelly Garnsey Hubbell + Lass LLC (Denver, Colorado): Member, May 2008-July 2011
  • Cook, Cooper & Moses, LLC (Greenwood Village, Colorado): Member, 2004-2008
  • Gutterman Griffiths, PC (Littleton, Colorado): Associate, 2002-2004
  • Gutterman Carlton & Heckenbach, LLP (Lone Tree, Colorado): Associate, 1997-2002
  • Colorado Court of Appeals, (Denver, Colorado): Law Clerk to Hon. Edwin G. Ruland, 1995-1997


Civic and Professional Activities

American Academy of Matrimonial Lawyers: Fellow
Denver and Colorado Bar Associations: Member
Colorado Bar Association, Family Law Section: Chair, 2009-2010
Colorado Bar Association, Family Law Section Legislative Committee: Co-Chair, 2004-present
Colorado Bar Foundation, Fellow
Mi Casa Legal Night: Volunteer, 2006-present
Barbri Family Law Review: Lecturer, 2000-2008
Colorado Bar Association, Continuing Legal Education: Lecturer
Listed in The Best Lawyers in America
Listed in Super Lawyers: Top 100 Women Attorneys
Listed in 5280 Magazine Top Family Lawyers



“Appellate Advocacy for Family Law Practitioners,” The Practitioner’s Guide to Colorado Domestic Relations Law (2005)
“The Constitutionality of Colorado’s Grandparent and Third-Party Standing Statutes,” The Colorado Lawyer (February 2003)
“An Appellate Primer for Family Law Practitioners,” The Colorado Lawyer (March 2001)


Published Cases

In re Marriage of Ohr, 97 P.3d 354 (Colo. App. 2004)
In re Marriage of Moore, 107 P.3d 1150 (Colo. App. 2005)
In re Marriage of Schelp, 228 P.3d 151 (Colo. 2010)