Can I sue if I sustained injury from fault of the pastor on the church property?

I had received medical bills from an injury I sustained while working on church property. Because of my financial situation, I tried to be a Good Samaritan and suck it up. When asked if the church would render funds to clear the bills, they defaulted to having me apply for hospital charity. When that failed, they chose to negotiate the bills in collection. With that, they also wanted me to sign some makeshift form to waive further on the matter. Meanwhile, I can't do things as I've done with my hand prior to the incident. I've now realized how much this has caused me grief outside the collection debt. I feel I need counsel but who does these things pro bono. I might add the church had insurance but this was found out after the matter. Of course, conscience plays a factor when dealing with 'godly' people.