I have an out of state property that a cash buyer is reaching out to me over. I owe about $100k on the property and a rough ARV is $120k. I told them that I would want around $15k to sell it. I told him that I doubt the price I want would work for an investor. They said they want to move forward with analyzing the deal. They want me to send them my latest mortgage statement. Is that normal? Should I be wary?