Does it have a limit to take someone to small claims for money that is owned to you?

This is not a patent question, but here is information from the Mass Court internet site - http://www.mass.gov/courts/selfhelp/small-claims/ : The small claims court is not a separate court, but a special session of the District Court, the Boston Municipal Court or the Housing Court. It is designed to provide a simple, informal and inexpensive option for resolving cases where the amount at issue is $7,000 or less.

Yes, there is a financial limit. That limit varies by state. Check with the local Clerk of the Small Claims Court for the amount in your state.