A trial has been scheduled over four days in May and June for the civil action launched by Darwin's self-described "mom."
Darwin has been at Story Book Farm Primate Sanctuary since Toronto Animal Services scooped him up wandering around a Toronto Ikea parking lot in December wearing a little shearling coat.
He has become the centre of a hotly contested battle between the sanctuary and Yasmin Nakhuda, who alleges animal services officers tricked her into surrendering her monkey.
She has already gone before the court twice in ultimately unsuccessful bids to try to get Darwin back on an interim basis, arguing that separating them until the trial would destroy their bond.
The full trial has now been scheduled to be heard May 30 and 31 as well as June 10 and 11 in Oshawa, Ont.