How do i find expired listings to offer seller-financing?

[Susan Tan]

My plan is to buy a primary single family home with a wrap-around mortgage/seller-financed mortgage in a walkable area in Houston, TX. Instead of paying the 20% downpayment or in all cash, I want to offer the motivated seller all-cash for the house. What are good ways for me to find expired listings?  Since this is all a private transaction, I don't think a realtor is part of this transaction. I understand that these properties may need rehab work so the seller is therefore motivated to do a creative finance deal w/ me.