You say your new to here. How new to the Phill world and your Girlfriend are you? Slow down would be my advice the two gents above me give great advice.
But why the rush to buy a place?
Will you stay there before and after marriage?
How will you finance your staying there?
What Visa would you have to stay there?
Im sure fellow forum users can think of other questions you need to be happy you can answer.