You can print a map and an itinerary by using www.viamichelin.com.
Just insert arrival details as follows:

address: via fabbricotti 5
city: bocca di magra
country: italy

The house is located at about 1,5 km from Bocca di Magra, at the crossroads for Montemarcello.

If you arrive by car, highway A12 exit is Sarzana or Carrara.

If you arrive by train, the nearest railway stations are Sarzana or Carrara (see the official website of Trenitalia).