Brockmann attended Boston University's School of Broadcasting and Film majoring in film and minoring in creative writing before dropping out to join a band. Afterwards she met her husband and started a family. It was after having her second child that Brockmann started writing. Initially she focused on television scripts, screen plays and Star Trek novels but after doing research Brockmann decided to focus her efforts on the Romance genre. Her first published novel, Future Perfect in 1993, was written along with nine other manuscripts in 1992 after her decision to publish a romance novel.

In 1996, Brockmann published the first in her Tall, Dark & Dangerous series. The series develops among a fictional group of Navy SEALs. The books following in the series, and that of the Troubleshooters, Inc. series are all classified in a sub genre known as 'military/romantic suspense'.

Brockmann has garnered the attention of magazines such as Out and Bay Windows, both of which serve the gay community, due to a subplot dealing with the romance of an openly gay character in her Troubleshooters, Inc. series. Brockmann has stated that she is a PFLAG mom, supporting her gay son, Jason, and dedicating her 2004 book Hot Target to him. In 2007 Brockmann donated the profits of her holiday novella, All Through the Night, to MassEquality.

Brockmann is a two time winner of the RITA Award from the Romance Writers of America. She has also appeared on the Romance Writers of America Honor Roll for having appeared on both the USA Today and the New York Times Best Sellers list. She has been the recipient of the Romantic Times Reviewers' Choice Awards in 1996, 1998, and 1999, as well as the Romantic Times Career Achievement Award for Series Romance in 1997, 2000, and 2002.

Tall, Dark and Dangerous

• Prince Joe, Silhouette Intimate Moments, June 1996, Reissued by Mira, May 2002
• Forever Blue, Silhouette Intimate Moments, October 1996, Reissued by Mira, February 2003
• Frisco's Kid, Silhouette Intimate Moments, January 1997, Reissued by Mira, June 2003
• Everyday, Average Jones, Silhouette Intimate Moments, August 1998
• Harvard's Education, Silhouette Intimate Moments, October 1998
• It Came Upon a Midnight Clear, Silhouette Intimate Moments, December 1998
• Admiral's Bride, Silhouette Intimate Moments, November 1999
• Identity: Unknown, Silhouette Intimate Moments, January 2000
• Get Lucky, Silhouette Intimate Moments, March 2000
• Taylor's Temptation, Silhouette Intimate Moments, July 2001
• Night Watch, Silhouette Intimate Moments, September 2003

Troubleshooters

• Unsung Hero, Ivy, June 2000
• Defiant Hero, Ivy, March 2001
• Over the Edge, Ivy, September 2001
• Out of Control, Ballantine, March 2002
• Into the Night, Ballantine, November 2002
• Gone to Far, Ballantine, July 2003
• Flashpoint, Ballantine, March 2004
• Hot Target, Ballantine, December 2004
• Breaking Point, Ballantine, July 2005
• Into the Storm, Ballantine, November 2006
• Force the Nature, Ballantine, August 2007
• All Through the Night, Ballantine, October 2007
• Into the Fire, Ballantine, July 2008
• Dark of Night, Ballantine, 2009
• Hot Pursuit, Ballantine, July 2009
• Breaking the Rules, Ballantine, March 2011

Stand alone novels

• Future Perfect, Meteor Kismet, August 1993
• Hero Under Cover, Silhouette Intimate Moments, June 1994
• Embraced By Love, Pinnacle, January 1995
• Not Without Risk, Silhouette Intimate Moments, June 1995
• A Man to Die For, Silhouette Intimate Moments, December 1995
• No Ordinary Man, Harlequin Intrigue, April 1996
• Kiss and Tell, Bantam Loveswept, May 1996
• The Kissing Game, Bantam Loveswept, December 1996
• Otherwise Engaged, Bantam Loveswept, February 1997
• Forbidden, Bantam Loveswept, April 1997
• Stand-In Groom, Bantam Loveswept, June 1997
• Ladies' Man, Bantam Loveswept, August 1997
• Time Enough For Love, Bantam Loveswept, November 1997
• Give Me Liberty, Precious Gems, Fall 97 (as Anne Brock)
• Love With the Proper Stranger, Silhouette Intimate Moments, January 1998
• Freedom's Price, Bantam Loveswept, February 1998
• Body Language, Bantam Loveswept, May 1998
• Heart Throb, Fawcett, March 1999
• Undercover Princess, Silhouette Intimate Moments, December 1999
• Bodyguard, Fawcett, December 1999
• Letters to Kelly, Silhouette Intimate Moments, April 2003
• Scenes of Passion, Silhouette Desire, July 2003
• Infamous, Ballantine, July 2010