Britney Spears and Jason Trawick
's father is taking an extra step in bonding with his future son-in-law.
Jamie Spears is asking a Los Angeles Superior Court judge to add Jason Trawick as a co-conservator over his pop star daughter, according to papers filed on Friday.
Trawick will only have shared legal control over Spears's general well being – not her finances, a source tells PEOPLE. In general, a conservator can make decisions over a person's food, clothing and medical care. But Spears has plenty of personal freedom and the conservatorship is just a formality, another source previously told PEOPLE.
"This is a very unusual situation, because generally you don't see conservatees get married," says Jeffrey S. Cohen, an L.A. probate attorney not involved with the case. "This could be a sign that the couple's wedding is around the corner."
Adds Cohen: "This is probably a compromise between Britney, her father and Trawick to get the marriage off on the right foot. Obviously, her future husband needs to have a say in her well being."
Jamie Spears has held legal control
over his daughter and her multimillion-dollar fortune since Feb. 2008 after the singer suffered a psychological breakdown.
The conservatorship will be lifted only after a judge is convinced, on the advice of Spears's doctors, that she's healthy enough to manage her own affairs.
With reporting by JENNIFER GARCIA