Dillon Law

The simple solution is to get payment at the time you perform the service. If you round bale, collect the payment per bale before the bales leave the field. Not only will you not have a dispute on how  many bales are made, but you will not serve as the short term lender to the person who hired  you.

You can file a custom farm lien against a farm for work performed, but in the event of a bankruptcy, from a practical stand point, you may move yourself to the front of line to receive little income.