Make sure You have a Reciept or proof of Purchase that You bought the Cabin.....talk with the Sheriff's Dept and take them with You to get the Cabin You state is Your Property!
I've known People that have gotten into serious trouble for trespassing to get their property/belongings also know of others that we're shot and killed because of an angry Spouse or former Friend that felt they were in the right and were protecting their Home or Property.
Don't take the Law into Your own hands or break in to get Your Cabin.....do it safely and honestly!