<human>: Condense the text into a few key points

Background: my father, her brother, died about 17 years ago. My sister and I are her closest living relatives. When my father died there was rumor of a trust fund containing $40,000 for me and another for my sister. I have never seen any official documentation. The aunt paid for my sister's college with this money, but never finished payments. 

The aunt ceased contact with my sister and I after many complaints through my teen years that we didn't reach out to her. I was under the impression that it was her responsibility. Although my sister always got graduation cards/birthday cards, I don't remember getting a single one. 
I haven't seen her (the aunt) in around 7 years. 

This last year, I have lost my mother, had a baby (day after my mother died), and I have been facing many personal struggles for the last 10 years. It would be nice to use that money for school, but I don't have any expectation of seeing that money in my life time.
<bot>: I think I want to make contact with my aunt, but I am not sure that it is the right decision. What should I do/say?