I explain, they sell a "contrato de intermediacion bancaria", it looks like you are buying a house, it sounds like you are buying the house but all you are buying is a contract which 9 out of 10 times will not get you the home.

that isn’t inherently contra to what I’m talking about.

Be very careful as thes guys sell "contratos de intermediacion", it sounds like you're buying a house, it looks like you're buying a house but you are buying air most of the time ! 

You have to pay an approved contrato to do the work, so things get expensive very quickly.