multiple clients on one payment

SOLVED

Hi, our company has multiple clients for the same product (service) with 3 managers, each over a portion of these clients.  These managers collect payment from some of the clients, other clients mail a chq to our office.  These managers will then make a bulk deposit into our bank account.  

I am wondering how I go about recording all this?  For now those who pay to the managers have invoices on their records that are allocated to A/R.  I also have the managers down as clients and their deposits have been going under their name.  My books balance, the problem is that the client's record will never show that the invoice has been paid.  

Should I create a project?   What would work best in this situation?

Thanks!