Can I file a civil suit?

You can sue for the breach of the warranty of habitability, breach of the covenant of quiet enjoyment, and possibly other claims.

Please break down the types of damages one may recover in an employment retaliation case

You can get economic and non-economic damages.

Can I sue my LandLord for touching me and sexually abusing me?

You can sue for battery and assault, although the statute of limitations on this may be expired already.

How do taxes work?

You should have a sellers permit and be charging sales tax.

Do the funds from a business bank account transfer when you form a LLC or corporation? What about credit?

You will likely have to open up a new bank account and transfer the funds into there. However, you should talk to your banker about this.

I am in partnership in a restaurant. I am purchasing it solely.

CA being an at-will state has nothing to do with your ability to fire or hire employees in your role as a partner. You need to have a business...

If they did fire you afterwards, it could potentially be a wrongful termination or disability discrimination.

Can a law firm represent 2 different banks over the same prperty in 2 different different courts both Federal & Superior?

Nothing that you stated sounds illegal or unethical.

Can my employer legally cut my hours and give me an extra day off and give those hours to a new employee?

Unless you have an employment contract that guarantees you a certain number of hours, this is legal.

What can I do about a competitor using our business name as their own?

You could possibly sue them for trademark infringement if you can prove that you first used the name in commerce. Consult with a trademark...