It won’t stay endophyte free over time. It gets cross pollenated with other fescue plantings around your location, so the endophyte flourish as time passes. As mentioned, not good for pregnant animals.
You could just let it grow and spread to cover the ground in time. Saves on seed cost if there won’t be any grazing. Just mow the fields a few times a year to prevent shrub and tree growth, maybe spray a broadleaf herbicide yearly to keep the weeds reduced.
You might check around, see if anyone would hay it for you, earn enough to pay the taxes and fertilizer cost… That use would need grass planting, regular fertilizing to get good hay. Check with your previous advisor about planting other mixed grass seeds for good hay in your area.
Land not attended to, mowed regularly every year, reverts to wild. Then you need to clean out brush to be able to use it again.