Start Simple
What is it you need to be aware of when thinking about your farm management plan? While the first aspect is simple it's something some people make way more complected than it needs to be. You need to think about the lands profit potential. Basically, think of the income and expenses that go into the land. You will also have to keep in mind your relationship with the farmer. This will impact managing the farm as a valuable asset in one way or the other. You don't want to hover over him constantly yet you can't be an absentee owner. Absentee owners often get taken advantage of. I heard a saying once from a farm manger that I love. "What makes the crops grow the best? My shadow."Negotiation Skills
What are your negotiation skills? Do you enjoy this part of the process? Do you expect fair market value for your assets? If you answered yes to this then you should consider custom farming. I would highly suggest looking into hiring a farm manager to handle this. They will get you the best deal you can for a small portion of the profits.
Written Lease
How would the farm manger work up a written lease? I'll go over a quick standard way it's done. While each deal is different this is the basic way it's written up. First off he would negotiate a new lease every year. This would insure that you get most out of the land year to year. He would secure the cash rental payments or collect up front. He would form a lease that would protect you and the farmer. He would guard against any subleasing. The lease would make sure you know your farm's production capability. And they would use studies from local universities on cash rent. However, take them with a grain of salt. These studies tend to be out of date by the time they become public.
Cost of Management
This is simple much like the first step but often people don't think about it. Basically this is the difference between what the owner/farm operator thinks might be fair vs analysis of value the land brings to farming operation. Simply put, think of it like any other business. Most first time investors forget that it's a business and treat it differently.