Don't re-enter her shop.
I realize that you need a legal space and that this would be a major setback to your growing business.
BUT---if a dollar goes astray, you'll be accused of stealing it. If the mixer breaks, you'll be accused of sabotaging it.
heck, if it rains, it will be your fault!
Don't accept any more calls or emails. Sever the connection completely. If she can't get her emails, tough.
CYA!!! And move on.
wth is that about?