The Spanish property market is a minefield and anyone can be an Estate Agent here. Luckily loads of these self professed experts have packed up and gone back to their day jobs in UK.
SAREB (banco malo) was created to handle the sales of all the repossessions and toxic debts from the Spanish commercial banks but last year they made a 1bn euro loss – paying the commercial banks commission on sales that they made on properties that they had given to SAREB, that SAREB couldn’t sell and gave back to the banks to sell (With me so far?). See http://sareb.org/
Many Spanish banks have their own Estate Agencies so Google them and see what’s on offer. The web is packed with Agents who are ‘authorised’ by banks to sell ‘distressed’ properties so beware of them although there are genuine honest companies representing banks so take your time and look carefully.
With regard to the agent you have written about – simple advice............. run.
There are lots of deals to be had with thousands, if not millions of properties in Spain so the buyer is the boss and you buy on your terms. Decide on your budget and find an Estate Agent you like and trust in the area you want to live in.
Good luck and take care.