If you are looking for a UK  based dual qualified Italian Avvocato and English Solicitor you can try Laura Protti.

Laura is a the founder of LEP Law .  She was in charge of the Italian Department at Howells, London, but has set up independently with an office in London, W1.   Her website is http://www.leplaw.co.uk/index.html 
 

She handled the purchase of our Italian property, and the Italian estate agent could not praise her communication skills between the two cultures enough.  Her fees are very competative.