Any Suggestions

Seller willing to sell income producing rental house owner financed if he can get him what he wants. value of house we’ll say for now since we know it’s a fairly good rental community and no war zone (safe) in the area of 100K-150 since here in metro Atlanta values have gone down like elsewhere,

Seller needs 20K. I wish to purchase no money down. Any suggestions guys…perhaps a consultant fee could be arranged for your knowledge & experience at closing.