Are you advertising to renters or to local real estate agents?
The best way to reach renters can be determined by the price. I find that many lower priced properties do well on craigslist and a slightly higher priced rentals do well on zillow & Tulia, hotpads, Just rentals...
There is a free service called Postlets.com that will syndicate your ad to all the top sights then generate you an html code so you can post a very nice ad to craigslist. The best place to market rentals is "everywhere" so you can reach a larger data-base of clientele.
HD quality pictures helps a ton when advertising online and plenty of pictures of the inside areas and community area such as pools. Also a billboard in the community center is good. Flyers in the current residents mailbox helps a lot because in general renters always try to convince their friends and family to move into their communities.
Social Media too--If you have lots of friends online like myself adding the poropeties to a social media sight may help.
If you would like to put together a pamphlet including commission rates it may be beneficial to drop it off at local real estate offices and introduce yourself. I am always happy to take a look at your rentals. If you would like to list your rentals with an agent such as myself I can include all the marketing for free and do it for you. If you are cooperating with agents it would cost you the same rentals fees to list your place and get faster results. I hope Ive been able to provide with some good ideas.
Laura L. Schweikert
Charles Rutenberg Realty, LLC
Cell: (954) 591-3553