(CNN) — Amanda Bynes' parents are taking legal steps to obtain conservatorship of the troubled 27-year-old actress's finances.
Richard and Lynn Bynes filed paperwork in Ventura County California, on Friday, saying their daughter appears to have a substance abuse problem, has engaged in bizarre behavior because she doesn't want to be "watched" and has "profound issues with her body image."
"We are deeply concerned that Amanda poses a substantial risk to herself, to others, and to property based on recent events in her life," according to court documents.
Bynes' parents are seeking access to nearly $3.3 million in blocked accounts, claiming that she is rapidly spending her money, which they fear includes a "substantial amount" on "marijuana and other illegal substances, and possibly for plastic surgery."
The parents contend their daughter is "essentially homeless."
Law officers in California earlier this week detained Bynes for a mental health evaluation. She was still being held Friday on an involuntary hold.
The actress was "involved in a disturbance in a residential neighborhood" in Thousand Oaks, a city about 40 miles west of Los Angeles, Ventura Sheriff's Capt. Don Aguilar said. The incident began with an emergency call to the fire department that a gas can was burning in a residential driveway at about 8:30 p.m., Ventura County Fire Department Capt. Scott Dettorre said.
Bynes has had her share of legal problems lately. She faces three misdemeanor charges relating to an incident involving a bong allegedly tossed from her Manhattan apartment in May.
She also has a driving under the influence case pending in Southern California, while a pair of separate hit-and-run charges against her were dismissed last year. She was sentenced to three years' probation for driving on a suspended license in May.
In their court filing Friday, Bynes' parents said their daughter has covered "smoke alarms with towels, tape windows shut, and cover her car's dashboard with cardboard and tape out of fear that cameras were watching her from inside these places."
The documents state that the woman's body image issues have gotten out of hand: "She is obsessed with the idea that she (and others) are 'ugly,' She talks incessantly about cosmetic surgeries that she wants to have completed. She also encourages her mother to have plastic surgery."
Her parents state that she has also been verbally abusive to family members online, even calling her 9-year-old niece "ugly" on Twitter.
CNN, HLN's sister network, tried several times Friday to contact Bynes' public defender in Ventura County. She has no known agent or publicist.