Unless you are willing to spend six figures in litigation costs and attorneys fees there is no point in addressing this other than to say you have...

Non-Profit; Is it possible to use a non profit to only support a specific group? Example - Minorities only ?

That is something done very frequently.

Two attorneys familiar with your case said no. We know nothing about your case so there is nothing meaningfully we can dispute the other two...

Nothing, or a lot, or a little. You have not provided enough meaningful detail. I suggest you discuss this with your attorney. Otherwise, the...

What should we do ?

Your fiancé should turn over the claim to her insurance company at the time

Out of state business refuses to sell me something because of the state I live in.

Yes....................................

You can sue them if you can prove it.

Yes. However you have a duty to mitigate damages, assuming she intends to not return. Meaning you need to make diligent good faith efforts to...

Please do not tell us what you “know” the law is, especially when you are incorrect about your statement. https://www.courts.ca.gov/20142.htm

File a complaint with the bureau of automotive repair. You can also take him to small claims court.