The inquiry will be headed by longtime coroner Cyrille Delage.
Public Security Minister Lise Theriault told a news conference in Quebec City this morning it will be up to Delage to decide whether any part of the hearings will be held in public.
The owner of the seniors' home called for a public inquiry two weeks ago.
Roch Bernier said people have a right to know the real story behind the Jan. 23 blaze at the Residence du Havre.
Bernier is part of a $3.8-million lawsuit against the town of L'Isle-Verte. The suit alleges the community failed to implement emergency plans which might have lowered the death toll.
An insurance company is also involved in the lawsuit and is seeking $2.3 million of the $3.8 million.
Investigations into the tragedy are already being carried out by Quebec provincial police and the fire commissioner.