SS Newbie Question

I located a possible short sale. My question is: The owner has filed Chap 13 with a hearing on 1/25 to accept or deny a 5 year payment restructure. The owner wants to ss if possible. Do I need to wait for the hearing or proceed forward and notify assigned trustee of our intentions? Payments are 7 mo’s in arrears to include property taxes. This is in Texas so if the decision of the Chap 13 review is declined I am afraid the foreclosure will be swift coming. Anyone have experience with this? Monday being a holiday, I am unable to contact anyone until Tuesday so this gives me some time to receive some good expert advise. Thank-you!
James