Can i put a lien on someones house for non payment of a personal loan if i have nothing signed?

Generally, you cannot place a lien on someone's house for non-payment of a personal loan without a signed agreement or judgment from a court. A lien typically requires a legal basis, such as a contract or a court ruling. If you have documentation of the loan and can prove the debt, you may need to file a lawsuit to obtain a judgment before pursuing a lien. It's advisable to consult a legal professional for specific guidance based on your situation.