Funeral services for Bobbi Kristina Brown are barely over, but tensions between the two sides of her family already appear at a boiling point over what will become of her estimated $20 million fortune.

Radar reports the Houston family is planning to fight the Brown family for "every last penny" of the money Whitney Houston left to her recently deceased 22-year-old daughter when Houston died a little more than three years ago.

Bobbi Kristina died on Sunday while under hospice care at an Atlanta facility with father Bobby Brown at her bedside. She never regained consciousness after being rushed to a hospital emergency room on Jan. 31, when she was found face down in the bathtub of the Roswell home she shared with boyfriend Nick Gordon.

Some attention has now quickly turned to the question of what will happen to Bobbi Kristina's assets and possessions, with Radar adding the "Houstons do not believe that the Brown family deserves any of Whitney's money." The Houston family is prepared to wage a legal fight to retain control over the fortune.

The news has one source predicting things are about to get really ugly. "They have waited patiently since the awful accident in January, but now they're going to go full force and save Whitney's money," a source said of the Houston's plan.

Meanwhile, TMZ reports investigators in Atlanta are now rumored to be treating Bobbi Kristina's death as an act of foul play with the 25-year-old Gordon said to be at the center of their probe.

Reports indicate authorities have had suspicions about Bobbi Kristina's death ever since doctors discovered a number of unexplained bruises on her body while she was hospitalized.

According to People magazine, Whitney Houston left her daughter as the sole heir of her $20 million estate, now the source of contention.