It looks like you have a lot to learn and not knowing the language will be a major hurdle. Italy suffers from:
a) a continuous economic crisis that started in 2008 and never really stopped (except in a few cities located in the North)
b) like Ireland a continous change of the laws regulating rentals and a very slow judiciary in order to recover a property from a non paying tenant (4-6 months in small provincial towns) well above 1 year for big cities and if you rent to a family or old or disabled people you are screwed. In addition you will have to hire a solicitor to start eviction proceedings at substantial cost (depending on the length and type of case)
Only benefit is that unlike the Irish govvie which is tax hammering landlords, in Italy for long term leases you just pay 21% of the rental income and you are done. This was the only clever move introduced by the MPs in order to provide stable long term tenancies (in Ireland they were thinking of doing it, but the govvie is too greedy and the media is too socialist to understand). I must say that this rule helped both paying tenants and landlords in general.
My suggestion is to translate these documents and read them:
In addition you have to consider that to purchase real estate you will have to consider:
a) public notary costs (a % of the sale value of the property) a few ks eur and how they are split between buyer and seller
b) estate agent costs (1.5-3% of sale value paid by buyer usually)
c) registration costs
d) annually you will have to pay the equivalent to the local property tax (which is much higher than in Ireland, but it is a expense that you can deduct from income tax)
In 2005 I was thinking about purchasing a property in the north, but the upside on the property sale value was very limited (it would have been a very bad investment since property values in Italy never really recovered from the peaks of 2007). Outside major northern cities and the capital there is a massive underoccupation of real estate.