Not anymore!
We are all here rooting for YOU, jmillhouse!!!
Sometimes family can help. Sometimes they just can't.
But you aren't alone anymore.
I like your plan. I am GLAD you have HIS sister on YOUR side. I bet that'll chap his a$$!! HA!
Call the domestic abuse hotline and see if they can hook you up with an organization that can loan you $$ temporarily for meds or one that can help in some way.
Don't forget about food stamps or other govt. type assistance to help you.
I would also talk to my local/favorite church. Sometimes they have been a Godsend to victim's of abuse.
If you can let us know your general geographic area, like state, without giving away too much info perhaps we can do some searches for you for additional help.
Reach out for help where ever you can! Q