You're smart to plan early since beachfront properties book early. I wasn't sure if you knew that the condos at 880 Mandalay, now known as Regatta Beach Club have a 90 day minimum rental period - will that work for you?
We don't handle rentals however I'd recommend Patti Belloise who lives just blocks from there and specializes in Vacation rentals. I know they have units for rent in that building and I included a link to their website below also, if you need a shorter time period they have other properties that may meet your needs. I hope that helps :)
If you decide you'd like to buy your own piece of paradise, we'd love to help you with that. You can search properties on our site http://www.sandbarstosunsets.com/home-search/