IMO You have no claim against Walmart. It is not their fault that someone left a cart there. And, as stated, it is likely your fault that you hit...

It doesn't look like it, but your post is pretty hard to follow. You should bring all the proof to a local attorney and get their opinion.

I recommend you return it for a refund.........

Unlikely, unless the lawyer knowingly created a fraudulent document.

you are not going to sue them. You are not going to spend tens of thousands of dollars on lawyers. Your Terms of Use with them tell you what you...

You have no damages and nothing to sue for.

yes, it is legal.............................................

Yes you can sue them. A lawsuit will take at least a year, maybe more. And, your employer can fire you.

Without knowing more, it is hard to say. But, she should be able to give you a Power of Attorney to move her stuff.

Sounds like you need a lawyer.....................