Any suggestion for collection agency's, that do not charge an arm and leg for collections? the amounts are generally under $500

good luck you generally have to either send them hundreds of accounts each month or do a consistent amount in dollars every month.

We've used https://www.directdebtcollections.com/ in the past and have been happy with the service.

Asset Management Recovery Services we have used a few times

They have been pretty good and decent fees

http://www.amrs-inc.com/