This Emmy Award winning writer got her start on daytime television during the early 1980s when General Hospital's Head Writer, Pat Falken Smith, quit the show with the entire writing team. Aiming for more control, the Executive Producer, Gloria Monty, decided to replace Falken Smith and her team with daytime novices and hired Laiman, along with novelist Thom Racina. The pair began working on the show during its heyday, leading up to Luke Spencer and Laura Webber's widely publicized 1981 wedding, which famously included Elizabeth Taylor at her own request. After three years on GH, Laiman followed Racina to Days of our Lives to work with Sheri Anderson where the three wrote Bo and Hope's marriage in England, co-created the character of Steve "Patch" Johnson and John Black.

In 1986, Laiman became head writer and created the character of Jack Deveraux and developed the popular romance of Steve Johnson and Kayla Brady. After Days of our Lives, Laiman moved to One Life to Live, where she stayed as staff writer from 1990 through 1997 and served as head writer from 1990 to 1991 and then again from 1996 to 1997. In 1998, she took a job at the ailing NBC Daytime serial Another World. She and executive producer Christopher Goutman were credited by some with improving the show, but ultimately the show was cancelled in June 1999.

Her next job was at As the World Turns. Behind the scenes conditions quickly deteriorated when Mary Alice Dwyer-Dobbin, Executive in Charge of Production for the show, pressured Laiman to write many storylines that she didn't want to write. In 2000, Laiman was fired from ATWT and turned to writing novels for five years. Laiman was rehired on As the World Turns in 2005 as an associate head writer.

Another World

• Co-Head Writer (July 1998–25 June 1999)
• The Last AW Writing Team: Leah Laiman (Head Writer, Jean Passanante (co-Head Writer), Stephen Demorest, Melissa Salmons, Laura Maria Censabella, Judy Tate, Tom Wiggin, Tom King, Maura Penders, Richard Culliton, Shelly Altman, Carolyn Culliton, Richard J. Allen, Sofia Landon Geier, Lynn Martin, Gillian Spencer, Mary Sue Price, Edwin Klein, Gordon Rayfield, Courtney Simon, Eleanor Labine

As the World Turns

• Associate Head Writer (3 March 2005 - end of 2005 and November 2009-present)
• Head Writer (August 1999 - August 2000)
• Co-Head Writer (Winter 2006 - January 24, 2008; April 18, 2008 - November 2009) (replaced by David Krizeman)

Days of our Lives

• Breakdown Writer (1991)
• Head Writer (1986-1989)
• Co-Head Writer (1984-1986)

General Hospital

• Associate Head Writer (198-1984)

Guiding Light

• Breakdown Writer (1993)

One Life to Live

• Co-Head Writer (1996-1997)

Daytime Emmy Awards

• NOMINATION (2000 & 2006; Best Writing; As the World Turns)
• WIN (2001; Best Writing; As the World Turns)
• NOMINATION (1990; Best Writing; One Life to Live)
• NOMINATION (1984, 1985, 1987; Best Writing; Days of our Lives)
• NOMINATION (1983 & 1984; Best Writing; General Hospital)

Writers Guild of America Award NOMINATIONS

• (1998 & 2005 Season; As the World Turns)
• (1994 Season; Guiding Light)
• (1987 & 1991 Season; Days of our Lives)