MY SISTER MORTGAGE OUR INHERITED PROPERTY

Hi, I need help. My sister mortgaged the land that we inherited from our father who died 20 years back. She's the one who's holding the land title on my fathers name. My brother and she is living in this property and I'm not. I don't have any idea what happened cause they were sheriffed last friday (Dec.3). My brother told me that he had no idea too that it was mortgaged. I'm confused to what happened cause I think my brother is showing me a forged notice of "Petition For Issuance of Writ of Possession". there are some inconsistency to the documents he is presenting me. I haven't spoke with my sister yet cause she's missing now. I hope you can help me. Thanks.

you will have to go to the court which issued the order and review the records to see how this all happened.