Asking tips on starting a small property management business

[Mary Yasol]

Hello,

I am a Realtor and have experience in sales and a few in placing good tenants in rental properties. I'm planning to build a small property management to help potential landlords and other clients in managing their rental properties esp in Miami, Fort Lauderdale areas. 

I have been reading information on costs etc but I would like to hear what is average or ideal costs and fees that property management charges here in South Florida? 

and perhaps advices and things to avoid that you can offer. I would be glad to hear from you.