Please let me know if i am understanding this correctly:

Are you saying to initially ‘Enter Bill’  from the credit card vendor statement to Farm A (posting the individual transaction amounts to their proper expense account; office expenses, gas & oil, etc.) Then ‘Pay Bill’ using the remaining $50 vendor credit along with a check from Farm A’s ‘Clearing Account?”

Then in Farm B, do I write a check payable to the CC company for the $650 posted to ‘Due from Farm A’ account, IN ADDITION to the ACTUAL check written from ‘Farm B’s’ the real bank account??