The owners of a financial brokerage firm in Thessaloniki are being questioned after allegedly obtaining housing loans of up to 400,000 euros for their customers by using forged documents, police said yesterday. Officers said they did not know the scale of the scam but seized dozens of fake tax declarations and land surveys and a list of some 250 clients from the firm’s offices. The company’s employees allegedly approached people who wanted to take out mortgages but did not have the necessary income. Police said the firm then offered to produce the documents for the housing loan in return for a fee. It is not clear exactly how much the customers were charged. Officers said that one of the company’s clients appears to have obtained a 400,000-euro mortgage using the forged papers.