This is a good question. I, too, would rather make money. I would like to suggest going to your bank and finding out about getting the payments deposited into your checking account, if possible. i.e.: direct deposit.
I know that renters prefer at times to use credit cards. There's little to do there, as there will always be merchant services charges. Do a search for 'merchant services' and you come up with a variety to choose from. Scanning just now, I found one for 1.09%, there're probably better out there. I'll be doing my own search soon. Good luck in your hunt.