Aguiar, 35, made his fortune in 2006 when he and his uncle Thomas Kaplan sold their Texas-based energy company for a reported $2.5 billion. The two have been in a messy legal battle since 2009 over the division of the money.
They went on to say that his was the victim of what amounted to "psychological terrorism."
In 2011, he was appointed an emergency guardian after his wife and mother petitioned a Miami-Dade judge for one, according to the Sun Sentinel.
"When conflicts arose…conflicts arose," Ellen Aguiar said when asked about some of her son's troubles. "There were many things going on that I'm going to refrain from addressing."
Aguiar's wife did not respond to request for comment from ABCNews.com.
The couple has four children, the youngest of whom is 10 months old. They also have a 3-year-old son, a 4-year-old daughter and a 7-year-old son.