I am sorry but I do not follow your summary. Is your dad still alive? What do you mean, his farm was split three ways? Did you inherit it or did he give it to you (and someone else?)? Is the *HE* you refer to your father? Who has the deed?
What I think you need to do is figure out what the deed says. Does it literally split the land three ways, or are three people joint owners? How are they joint, if they are joint, (tenants in common, joint tenants with rights of survivorship, life estate to your dad and remainder to two or three others)? Once you know what the deed says, it will be easier to figure out what the various interests are.
The owner is whoever the deed says it is. If the deed was drawn up by an attorney, that would be the logical person to ask about what your father's intent is. If the deed was not drawn up by an attorney, then it is anybody's guess what the effect of it will be.
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