Hi, Jack!
I have dealt with two realty companies in that area, and have not heard any complains about either one.
Dunes:
http://www.dunes.com/Surfside Realty:
http://www.surfsiderealty.com/You should also check with VRBO (Vacation Rentals by Owners) because you may be able to negotiate a lower rate if you talk directly with the owners.
http://www.vrbo.comI have heard of people asking about an indoor pool, and being assured that there was one. But when they arrived, they discovered that the indoor pool would not be open during the time they were there. So be sure to ask about this if you are told there's a indoor pool.
Please keep us updated about your search.