Legal Question in Real Estate Law in Kansas

If you are renting the land form yrou neighbor, then new owner must recognize that lease, until they cancel it. If the use of the land is gratuitous, then new owner owes you almost nothing. As you described it as neighbor "let you usethe land," it sounds like you are n the second category. You will need to move the horses within a reasoanble time after being told to do so. What a reasoanble time is, is dependent upon the facts of the particular case. If you are unable to move the horses within the next day or so, you should consult directly with an attorney in your area. Many offer a free or low cost initial consultation. Take any documents you have, and let them ask you follow-up questions.

Good luck