Italian law changes regularly.
The business newspaper Il Sole 24 ore gives daily updates on regulation changes in business and finance.
For online updates on changes in business law go to Commercialista Telematico
The accountant, called commercialista in Italian is necessary for any business. Rates start at about €1,500 per year for a free-lancer and go up from there.
Your commercialista should be advising you of changes in policy that could improve your gains, otherwise, look for another one.
Each major town has its own jurisdiction and website where they publish news:
If you are looking for a lawyer go to Ordine Avvocati