The former Manchester United signing has struggled to make an impact since his arrival in Italy.
But agent Giorgio Paretti says the appointment of Sinisa Mihaljovic will boost Ljajic's chances.
"He will return to Florence on Saturday and Tuesday will buy a house. For the rest you can rest easy. Adem has clear ideas as Fiorentina is counting on him," said Paretti.
"Bologna and Cagliari have tried, but the player remains in Florence. Has Mihajlovic called Ljajic? I think he did something more than a phone call, in the sense that both are Serbs and wanted to see eachother face-to-face."