Hi. I rented a bobcat with a hammer bit to break a giant rock as big as a car on my girl friends property in the state of Rhode Island. It was a one day rental. I had the machine for the weekend because they were closed on Sundays. The machine had a hydraulic oil leak and the switch to turn off the hammer function malfunctioned. The Bobcat was not able to break the rock like the rental company had mentioned it would. I did complain about this to them. They did let me use another bobcat the following weekend with no extra charge. This time after about three hours of use the bobcat started leaking hydraulic fluid. I had to stop using it. I told the company I'm not able to get what I want done because there equipment keeps giving me problems. They checked out the bobcat and said I tilted the machine to much and that damage the hose on the machine. I don't agree with that. I did ask for half my money back because I couldn't get anything done. The price was $1,100.00. My question is if I dispute this with my credit card company do I have to worry about the Rental company putting a mechanic lean on my girl friends house? I don't know how this works. I use my credit card for the transaction and I live in the state of Connecticut which is not far from her home to help her out. Being that I paid for it with my credit card can they put a lean on her house? Thanks, Mike