Lohan was briefly hospitalised on Friday (June 8) when she struck an 18-wheeler truck with her rental Porsche. The driver later claimed that Lohan tried to bribe him to keep the accident quiet, but he apparently rejected her offer.
The truck driver, whose first name is James, has since told TMZ that he has retained an attorney to represent him in a potential case against the star.
James also said that he has seen a doctor for injuries sustained in the crash, but declined to state the nature of those medical issues.
Lohan has refused to take responsibility for the crash by claiming the brakes on her rental car failed.
The actress also reportedly attempted to cover up her own injuries in order to continue shooting her television film Liz & Dick in the hours after the collision.
Lohan appears in the biopic as legendary actress Elizabeth Taylor, with co-star Grant Bowler playing Richard Burton.