Cissy Houston and Bobbi Kristina Brown
Cissy Houston and Bobbi Kristina Brown (R) attend the opening night of "The Houstons: On Our Own" in New York Oct. 22, 2012. Reuters/Andrew Kelly

Cissy Houston, the grandmother of Bobbi Kristina Brown, and her sons could inherit Whitney Houston’s $20 million estate if the Grammy award winner’s 21-year-old daughter dies, the New York Daily News reported late Thursday. Bobbi remains on life support after she was found unconscious in a bathtub on Saturday.

According to Whitney’s will, Cissy and her two sons will inherit the estate if Bobbi dies before coming into her majority, the Daily News reported. Bobbi, who is the sole heir of her mother’s estate, can acquire a major part of the trust's money, only after she turns 30. She reportedly received nearly 10 percent of the money left behind by Whitney when she turned 21 this year. However, Nick Gordon could also have a claim in the estate if he can prove his marriage with Bobbi, the Daily News reported.

Despite Bobbi and Gordon referring to one another as husband and wife, a lawyer for rapper Bobby Brown confirmed that the singer's daughter was never legally married. "Bobbi Kristina is not and has never been married to Nick Gordon," the lawyer said in a statement.

Bobbi was found unresponsive in the bathtub in her suburban Atlanta home and was placed in a medically induced coma. She was discovered by her friend Maxwell Lomas and Gordon, both of who reportedly began performing cardiopulmonary resuscitation before the paramedics arrived.

Bobbi is surrounded by her family and friends as she fights for life at Emory University Hospital in Atlanta where she was moved after spending two days at North Fulton Hospital. Bobby Brown, 45, is “hopeful” that his daughter can recover and is struggling with the idea of removing her from life support, TMZ reported.

Cissy also arrived from her New Jersey home to be next to her granddaughter. “Cissy was so traumatized losing Whitney and the pain is still raw from that,” a source told Daily Mail.

Meanwhile, a police source told Daily Mail that Bobbi’s life support has been turned off. However, Bobby Brown released a statement to Radar Online declining the report.

"If we issued a statement every time the media published a false report regarding this matter, that's all we would be doing 24 hours a day," he reportedly said. "This is false, just as is the vast majority of the other reporting that is currently taking place."