Legend my friend you have no idea how subjective this let us say "black list" would become and it would become one despite best intentions. For better or worse most have just the tip of the iceberg in regard to unrealistic expectations of both buyers and sellers, my PM box is full of them. Please just let it be and trust me the risk we all take is better than the alternative. I will not try to delude into thinking I can keep us all safe but the alternative is even more unpalatable.
Read below, my sig.: