AP

ABC News' Eileen Murphy, Michael S. James and Luchina Fisher report:

Whitney Houston has left her entire estate to her only child, Bobbi Kristina Brown, according to documents obtained by ABC News.

However, the 19-year-old will have to wait until she's 30 to inherit everything.

Houston's will calls for a trust administered by Houston's family. The trust will dole out money to Bobbi Kristina at ages 21, 25 and 30, with other grants at the discretion of the administrators of the trust, according to The Associated Press and Inside Edition, which first reported the contents of the will, filed in Atlanta.

Click here to see a copy of the will

Forbes is reporting that Houston updated the will in 2004, naming Bobbi Kristina as her sole heir and mother Cissy Houston as executor.

Fulton County Probate Court Judge Pinkie T. Toomer approved the will Wednesday in Atlanta, according to AP. Houston's sister-in-law and manager, Pat Houston, was named as the administrator of the estate.

One of the singer's lawyers, Kenny Meisalas, told AP that her will is "straightforward" case and he expected no complications. "Things with the family have been very smooth, no problems," he said.

Houston left nothing to her ex-husband Bobby Brown. Houston's other brother, Michael Houston, and his wife Donna, are also no longer serving as trustees, according to the Forbes report.

Houston was found dead in a bath at the Beverly Hilton in Beverly Hills, Calif., on  Feb. 11 at age 48. She had been planning to attend a pre-Grammy Awards party at the hotel thrown that evening by her mentor, the music mogul Clive Davis.

Bobbi Kristina, Houston's daughter with the singer Bobby Brown, took the death particularly hard and was hospitalized for stress and anxiety after her mother died.

She recently gave her first interview since Houston's death to the former queen of daytime talk, Oprah Winfrey, whose OWN network plans to air it Sunday at 9 p.m. on "Oprah's Next Chapter."

Bobbi Kristina will share "personal memories of her mom and how she would like the iconic superstar to be remembered," according to a news release.

Winfrey also interviewed other members of Houston's family, including her brother, Gary, and his wife, Patricia, the singer's manager.

"The family also addresses the rumors and speculation surrounding Houston's death," the news release said.

The Associated Press contributed to this report.