[12][18] During the 1980s, while working with the McHenry County Youth Service Bureau in Woodstock, Illinois,[19] she became involved with Steve de Shazer[20] and Insoo Kim Berg[21] and his team at The Brief Family Therapy Center in Milwaukee, Wisconsin.

She was part of the group of researchers that made contributions in the field of psychotherapy to help develop what is known as Solution Focused Brief Therapy (SFBT).

After moving to Boulder, Colorado, she opened her second Divorce Busting Center where she continues to see individuals and couples as a marriage and family therapist.

[30] She is also involved in education and support in supplying advice for several online internet groups including Redbook,[42] Planet-Therapy.com,[43] IVillage,[44] and The National Registry of Marriage Friendly Therapists.

[45] Weiner-Davis was a State-of-the-Art Faculty presenter in 2005 and in 2009 for the Evolution of Psychotherapy Conference that is held every five years by The Milton H Erickson Foundation.

[55] After years of experience in private practice Weiner-Davis came to the conclusion that in many cases divorced couples were merely exchanging one set of problems for another.

[56] She desired to translate the principles of (SFBT) into everyday English and to spread the word of its effective use, believing that most marriages are worth saving and their problems solvable.

[28] To accomplish this goal she wrote the self-help book Divorce Busting: A Step-By-Step Approach to Making Your Marriage Loving Again.

[57] The book challenged mainstream psychotherapeutic techniques at the time[30] and gave her national recognition as a notable therapist in family therapy.

Weiner-Davis believed that far from the traditional fairy-tale notion of "happily ever after," successful marriages involve working through and surviving problems, setbacks, and conflicts to become stronger.

The book used real life case examples of past experiences she had seen during therapy over the years in helping others to deal with personal problems caused by stress, depression and anxiety.

She also discusses some other key relationship issues such as depression, infidelity, Internet obsession, sexual problems & midlife crisis.

[69] Weiner-Davis' latest book Healing From Infidelity: The Divorce Busting Guide to Rebuilding Your Marriage After an Affair was released in January 2017.

According to their website, "the Impact Awards are presented to those whose research, books, political or grassroots action, leadership and brilliant reconceptualizations have given us new hope about reversing the epidemic of divorce and family breakdown".

[93] Weiner-Davis received The Washington Times Inaugural Founding Spirit Award in 2007 recognizing her work in community activism.