Advice on Advance Parole for Brother and Sister

My aunt is the only relative I have in Mexico. She used to visit my family when I was a child with a visa and then stopped when they would no longer give it to her. I don't know why they would no longer give it her though. My sister and I want to travel to see her so my sister can clear her EWI and get her green card since she is married to a us citizen. There is no way for me to get a green card at the moment but want to have my passport stamped paroled so if in the future something comes up I'll be prepared and ready.

My aunt lives alone in Mexico, and is willing to get some eye surgery that she needs now that she has someone that can look after her for a week or two. I know we both have to fill out separate forms so what would each of ours say so we both get accepted for AP?

copy and paste really. She need both of you, try to make AP sound like it