Hi fourmaggie, I'm going to take a different path than the other posters. I was surprised when you said you wrote up some boundaries and then shared them with your sister.
For me, my boundaries are personal. They have to do with how I am going to handle different situations should they arise. For example one of my boundaries is that I will never ride in a care where the driver has been drinking. Doesn't matter who the driver is, I'm not getting in that car. Boundaries are for me. They keep me safe. They are my lines in the sand and plans for how I will react should they be crossed. I don't share them with anyone.
Your friend,