My wife's friend is selling her plane. She is currently buying it on monthly payments + interest from an older gentlemen she bought it from. I believe he is in his mid 90's and she is having some difficulty getting some answers. Most importantly, it is not clear if he actually placed a Lien on the aircraft or not. She is not trying to sell it or screw him over, rather she just wants to know in advance if this will be one more thing that will complicate the sale. Fortunately, she is no where near upside down. I think her goal is to have the buyer make out 2 cashiers checks so she can directly pay him back with one and keep the remainder for the part she's already paid off. How does a person find out if a Lien has been placed? This is for Minnesota. Is an aircraft Lien a federal thing or state thing? If there is a Lien what kind of forms are required to remove the Lien?