Property Management Firm Not Paying on time.

[Anu Anil]

We happened to buy a house and have been renting it to section 8 tenants. We have had this property for about a year now. We have been using a property management since we have brought this property.

Since Jan2015 they have not been paying on time. The cheques they gave us has bounced on us 3 times. Currently they are holding to 3 months worth payment about 2.5K. Contractually he was supposed to pay March's rent on April 10th, but the cheque he deposited bounced and we have been behind him for last couple of weeks for the payment. 

What should we do to have our money. I don't know if a lawsuit will help and if it would be worth it ( it would not be worth if it costed more than the money I have to get).