Suing my property manager for missed payments

[Herve Alce]

I have a property in Hialeah which is being managed by a property manager. In the months of April and May, my property manager did not pay me for those months. Since then, I collect my payments from section 8 directly and my realtor collects the balance from my tenant. He has since become my de facto property manager.

Concerning my original property manager, what can I do? I have already fired him but he owes me $3,095.58. How should I proceed with this? 

I have reached out to him on multiple occasions and he hasn't really responded. Every now and then, he tells me he is going to pay me back but I still haven't gotten anything from him. I've never sued anyone before but I really think that I should sue him.

All of the bigger pockets wisdom is requested. Help me out, please!