The presence of a lawyer during the conclusion of a real estate purchase and sale deal is compulsory for the buyer if the sum of transaction €80.000. The lawyer is the guarantor of the legal clarity of the transaction. He should make sure that the seller is really the rightful owner of the property for sale and make sure that the property is not encumbered with anything (not mortgaged, etc.) and is free from claims. Next, the lawyer must determine whether there are legal building permits and whether the seller has paid all the property taxes due for the past and current years.