Arriving in Paris at the Gare du Nord and headed for Hôtel Acadie? By car, take the A1 motorway towards Villepinte. The trip should take 25 minutes at off-peak hours.
The Gare de Lyon is in the northern part of Paris proper. It's about the same distance as the Gare du Nord. The trip should take about 30 minutes by car or taxi via the A3 motorway (towards Villepinte), and is about 30 km.
The Gare Montparnasse is in the southern part of Paris proper, 30 km from Hôtel Acadie. It is roughly a 40 minute drive with no traffic.