Just a thought, how about you move in to the farm and pay your brother a rent , then when you sell your own property you can pay him off. In Germany you can rent places but the rent is taken off the price of the property so you end up owning it. (mietkauf) you have to pay rent for a set time of years first then every thing you have paid is deducted from the price.
This would be a regular income for your brother, and a benefit for you.