That said, there aren't many who do what we do so you will likely have to use more than one. The best thing you can do is be honest with them so they know the score going in.
The short answer to your question is, yes it is. The long answer is, since you are searching so many areas, it is important to find an area specialist that has expanded knowledge of what you are searching for and is aware of the market trends in that city and neighborhood. That will give you the best chance to land a good property for a good deal. The only thing we agents want is transparency. Just advise the respective agent that you are working with others. Some welcome competition and other shy away from it. During that time you can choose if that agent is right for you.
Realty World Acclaim
Good deals find money fast!
I think having several agents looking for you is a good thing!
Let your agents know that your committed to finding a great property and if they find it you will use them.
I like competition, may the best deal win!
As a Buyer, I would concentrate on finding a single dedicated RealtorÂ® in the area of where you want to buy. You absolutely want the benifits of professional local knowledge. Keep in mind CA Dept. of Real Estate licensees are NOT bound to a Code of Ethics; only RealtorsÂ® take that oath. The one page version can be viewed here: http://docs.Steven-Anthony.com/RealtorCOE.pdf
You can check to make sure an Agent is a RealtorÂ® by going here: http://www.realtor.org/rofindrealtor.nsf/pages/FS_FREALTOR?O