I am a retired teacher  and an expert home exchanger (first home-swap in 1982 ,  25 exchanges altogether).
I have been living in Venice for 30 years and I really love my town. My home is in Dorsoduro (one of the 6 areas the island was devided into during the middle ages) . One bridge from campo S. Margherita, 5 mn. walk from the Accademia Galleries , 20mn from St. Mark's square and within walking distance from the car and bus terminal and railway station. It has all appliances, free wi fi , air conditioning in the upper floor and it boasts a private garden 200 sq. m. large giving on to a private courtyard with neo-gothic and renaissance buildings. It is very quiet, with all kinds of shops and supermarkets in the surroundings. I will be glad to give you all   infos about Venice and the inland towns if you want to visit them.
I am  interested in exchanging for medium/short periods (1 to 2 weeks) during the summer. But what I am looking for a long term exchange with London or N.Y.either in autumn or spring(mid-september to mid -november , or march/april) Venice in Autumn and Spring is fascinating, less crowded and less hot and it offers a variety  of interesting cultural events (from concerts to operas and art exhibitions ).