Cuz its a public record,even in the usa when one buys a house its recorded with the amount of loan taken and how much it was sold for.
I'm surprised they release names etc. When I was a tenant somewhere and had a problem with a rented apartment, the admin people wouldn't even confirm the surname of the owner even when I quoted it to them! They said "Cannot confirm or not. All I can do is note your request and get back to you."
You can do it here ekw.ms.gov.pl/pdcbdkw/pdcbdkw.html
Someone else on my travels mentioned that to me, but they didn't know the link. Thanks for posting it :)
What's 200-800 zł in comparing to the amount of money you are paying for your apartment?
Personally I believe a sworn translator would be more useful than a lawyer-
Let's have 'em all, heck let's invite everyone!