file a lien on a busniess property

My friend owe $8000. I have asked several times to ask her to pay me back. First, she gave me her personal check to insure that she will pay me back after a month. When a month passed by, she came up with another excuse for not paying me back. I don't know what would be the best way to get my money back. She has a house and a gas station under her name. Can I put a lien aginst her property so that I would get my money back when she sells the property? what would be the best way to get my money back.
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