Foreclosure on my all inculsive note

Hello All im going to foreclose on a all inculsive mortage I have. Im update to on my end
but the buyer is not. will it go to auction? do I get the property back? first time love the info. Thank you

Deal I owe $40,000 sold it for $60,000 my payment $700 my buyer payment $1500 they are 3 months behind.