The actress, 24, left Pickford Lofts, a sober-living facility where she had been staying since last Wednesday, at around 3:30 a.m. on Tuesday morning and returned to her West Hollywood condo with her mother Dina and ex-girlfriend Samantha Ronson.
Lohan and her lawyer, Shawn Chapman Holley, are expected to head to court from her condo, with a police escort. Her father, Michael Lohan, had already arrived at the courthouse.
Lohan is expected to serve only a fraction of the full sentence due to overcrowding.
Reporting by PERNILLA CEDENHEIM