Business ProfileforUS Landvestors

I was selling my house and property. I went online and found US Landvestors. They gave me a Very low offer for the first offer. The second time they asked me, how much would I?The lowest amount I would take and I said twenty thousand they came back with twenty thousand five hundred. I said that was possible and then they said I would have to wait for them to sell the property before I got my money. I entered into a contract with them. I decided i was going to stay . I asked to be released from the contract ******* said he would contact his manager and she would contact me and no one contacted me back. I thought I was out of the contract. I was no longer actively seeking to sell the property. A local business owner came to me interested in the property. She offered me twenty eight thousand with ten thousand down. So when I entered into escrow with her that's when I found out they had put a lean on the property. I was told the sale was deadlocked until I spoke with them. The person I spoke to marry was a very rude. And proceeded to tell me that she wanted fifteen thousand dollars to release the Lean. To me this sounds like a Is scam . The website no longer works either. I once again tried to resolve the issue by agreeing to let them facilitate the sale Which **** said to the interested party that she would only do the twenty eight thousand dollar sale if they were gonna get fifteen thousand, the contract doesn't say anything about the company getting fifteen thousand dollars. It does however say I get twenty thousand five hundred. The business practices of this Company and **** in particular leave a bad taste in my mouth. Scamming hard working lower class people.