I made a death bed promise to my late wife that I would take care of her adult daughter since my late wife knew she would never make it on her own (Why?  That is another story!!)

So for 14 years, I have kept that promise and supported her.  Her part-time job barely keeps her economically alive for just incidentals, since I pay for her room and board.

Also, my late wife set up a relatively large  trust account for her and that generates about $15,000 each year in interest and dividend income (without affecting the principal assets).

So as anyone can see, she has it pretty good IMO.  But she is a fucking asshole and an unappreciative bitch!  She does nothing to help out around the house and contributes nothing to our family unit.  Each day it gets harder and harder for me to stand her.

I have a new girlfriend now, and my GF lives with me (us).  I gotta give my GF a lot of credit for putting up with my late wife's asshole daughter and not even giving me shit about it.

What should I do about this?  How can I kick her ass out of my life?