I have an signed and notorized agreement for a partnership with the company but was never legalized. Does that contract expires

It is unclear what you mean by "legalize." If you have a signed agreement with someone, that is probably a contract. If it is a valid contract then...

What should I do? Call back or ignore? Could it be a scam?

The USPS delivers certified letters, not individuals who call ahead. They may be trying to serve you or it could be a scam.

Can I demand payment for an unfulfilled service?

If you had a contract then you could sue for breach or have a lawyer write him a demand letter. If you sent the items unsolicited, he has no...

Can I use the defence that B told me?

It depends whether you repeated the untrue statement or you stated that A told you B said that. Regardless, you could still be sued.

Is it a good idea to have me put on my parents titles and accounts as co-owners before anything happens to them?

It is good that you and your parents are addressing this now. Too many people wait until it is too late then they are stuck with expensive and time...

Is it legal to invest other people's bitcoin without a license?

You are dancing on dangerous ground here. There is significant debate over whether laws applying to currency transactions apply in the same way to...

When can I sue for a fall on a wet floor in a college? There was not a wet floor sign. I am an employee.

This sounds like a workplace injury. Contact a workers comp attorney to represent you. You have rights. Protect them.

If a website is hacked into, who is responsible for the securing the website, the designer or the host?

Be sure to clearly state who is responsible in your contracts with clients. Have an Internet lawyer draft your contracts for you to make sure you...

Can I press charges

It sounds like you were hacked and your privacy invaded. There was also copyright infringement if you took the pictures and did not give them...

They can fire you for violating work policies. Your termination is not wrongful.