I'm originally from Germany, but I've lived in Ireland for more then 4 years and also bought a house here.
Now I got a new job back in Germany and I would like to keep the house in Ireland, but don't really know precisely how this will work out tax wise?
Will I need to pay tax in Ireland, if I do sell it eventually(I have a local contract in Ireland)?
Or does anyone have a suggestion where I could find sound advice on these matters?
You probably need advice from somebody with expertise in the tax codes in both jurisdictions.
For one thing non resident landlords renting a property in Ireland must arrange for certain taxes to be witheld locally. See the Property Investment FAQ and Revenue booklet IT70 (?) for some info on this specific issue.