Bobbi Kristina Brown's reported still diminishing state could leave the estimated $20 million fortune mom Whitney Houston left to her in great limbo and up for grabs.

Billboard reports if the 22-year-old dies before turning 30 funds that would typically revert back to her estate and next of kin, meaning father Bobby Brown, are left in question given the way Houston structured her will.

Reportedly, it stipulates if her daughter dies unmarried before the age of 30 "the undistributed portion of the estate" should go to her living relatives, which include mother Cissy Houston and two brothers.

Clouding matters all the more are all the rumblings of Nick Gordon, who claims he and Bobbi Kristina were actually married in January 2014, legally making him her sole heir. While sources insist the two never married and in fact were headed for a breakup before she was hospitalized, Gordon still claims he has photos and documents to prove otherwise.

"It could get quite messy," a source told Billboard of all the possibilities. "There's a lot of money at stake. The last thing the family wants to see is Whitney's estate get in the wrong hands."

Bobbi Kristina Brown has never regained consciousness since being found face down in the bath tub of the Georgia home she shared with Gordon on Jan. 31. For a while at least, she required the assistance of a ventilator to breath and has since been moved to a long-term rehab facility.

Almost from the very beginning, rumors have circulated of a behind-the-scenes battle between the Houston and Brown families over how best to handle the clearly grave situation. And with tens of millions of dollars hanging in the balance, over time the disagreements have seemingly only grown louder.

"This [kind of family squabble] never happens -- except all the time," said attorney Michael Sukin of Sukin Law Group, who has represented the estates of George Gershwin and Elvis Presley. Sukin added the case could be greatly simplified if all of the parties would agree to appoint a single guardian.

Meanwhile, TMZ previously reported authorities have launched a criminal investigation into the circumstances surrounding Bobbi Kristina's injuries after doctors discovered several other unexplained bruises on her body. The probe reportedly targets the 25-year-old Gordon as the primary suspect.