On a short sale WITHOUT a waiver of the deficiency, there remains a balance which will be reported on cr's.
Once you actually settle the deficiency, it will show settled.
There is much confusion about this because often they will NOT give a waiver. Rather, they collect some money at closing and you still have the balance until such time as you successfully negotiate with recovery dept.
You and the first contributed for the purpose of closing the short sale. This is a common arrangement and does not forgive the debt. That is a seperate negotiation you still need to address. Typically, 25-30% will settle the debt.
You should NOT receive a 1099. I do not believe that is accurate info from another poster. You ONLY receive 1099 once it is settled, because at this point you still owe it.
Many people opt not to settle these, in the hopes that they will just drop off the radar in 10-20 years or whatever your sol is. The risk is that they sue for the entire amount due. Additionally, you will be hard-pressed to borrow again with an unsettled amount like that on your cr.