Your objective should be to find a selection of competent, professional and honest Spanish property agents with mature, bilingual staff that are knowledgeable of the local property market. If you can achieve this you are unlikely to run into problems when buying in Spain (though you should always employ an independent lawyer as well).
As has been said several times before, there are many decent and professional property agents in Spain. The problem, of course, lies in distinguishing them from the large number of unprofessional, incompetent or unscrupulous ones. All property agents in Spain make the same claims about their superior service, and some of the worst companies have the biggest marketing budgets, which they use to sing their own praises louder than the rest. Few buyers will have previous experience of property agents in Spain, meaning that buyers have to take decisions on the strength of little useful information.
Probably the best way to find good Spanish property agents (and steer clear of bad ones) is through recommendations from friends and acquaintances that have had dealings with agents. The more people use recommendations, the more companies are forced to pay attention to building good reputations, which means doing right by their clients.
© Mark Stucklin (Spanish Property Insight)