Schedule F vs Form 4835

My mom is a retired school teacher who farms. A tax preparer told her she should move all of the items she previously reported on Schedule F to Form 4835, even though she does not lease the land or livestock to anyone. The tax preparer said to do this because my mom has never been nor would ever be eligible for social security benefits, given her school district's pension structure. Is this switch (from Schedule F to Form 4835) accepted under these circumstances?