how to take possession before the 30 days after sale is confirmed

[Kemisha Anderson]

I purchased a property at auction in Illinois, I went court to see if the sale would be approved, I told the judge that the property was vacant and had been vandalized since I purchased it, and that I would like immediate possession, and he granted me. then I  brought a second property and the same thing happened it was vacant and had been vandalized before my court date, this time I asked the judge for immediate possession and was told  I needed proof that the property was vacant. I spoke to a lawyer outside the court room and asked what proof would I have to show, he said I would have to INSERT myself into the case to prove the property is vacant so that I can take immediate possession next time. Does anyone know what that means or how I insert myself into the case to show vacancy?