Hello buli

I'm so sorry to hear your going through all of this with your niece. Suicide attempts are very scary and heartbreaking.
I don't know what is available in your area specifically but this organization
is in your area and can help you with local questions: the link is here
www.search.yahoo.com/search?ei=utf-8&fr=slv8-yie9&p=nami%20aurora%20il&type= Nami -Info
namidkk.org
(630) 896-6264 -400 Mercy Ln, Aurora, IL.
This suicide workshop has some very valuable information as well:
TOOLS: Dealing with threats of Suicide and Suicide AttemptsThere are many members here dealing with a family member with BPD and can be very helpful with what you're dealing with. How are you and your sister coping with all of this? Your emotional well being is equally important. Is your niece in therapy now?