Look into them a bit deeper. I read that you keep them small by basically starving them. Don't take my word for it, do some research. Also heard they don't really stay that small....
Yea I had a buddy who bought a "mini pig". Fast forward two years later and he had to give it away to someone with open land (i.e. a farm). It did not stay mini. Also I've read you basically have to child-proof all your bottom drawers 'cause they may be smarter than dogs but they'll still try to eat cleaning products. Just get her a pug