Do you need a permit to set up a live stream of the Chicago riverwalk?

Usually you will need a permit from the city to do a public performance on public grounds. Check with the city.

Customer refuses to pay for products after making request for upgrade and service already provided.

There is something known as unilateral mistake. However, without reviewing all of the paperwork and the duties to which you agreed, it is unclear...

What kind of agreement?

Are you providing just services or are you also providing software? Are you providing your own intellectual property or are you using someone...

Can I distribute my album online even though I don't own the Master?

These questions need to addressed by an attorney in private to ensure that you are not doing anything contrary to any agreements you may have.

You will need your own liability insurance for running a business out of your home and a business license.

Is it wrong for a buisness to use a DMCA copyright claim against my website to get information to attack me?

Since you are not the owner of the game, to the extent you are using their materials, it would be a copyright infringement and thus a DMCA claim...

When a letter is received with no signature, typed or otherwise, refuting an issue, is it considered legal?

I agree with my colleague that you post is unclear. From whom did you receive the letter and what does the letter state?

Terminated a 1099 labor for different issues. After last check, they went on a reputation destroy mission. False and libel.

This is a defamation action entitling you to file suit against the poster. You need to find a local torts attorney well versed in defamation...

Intimate photos used without my permission?

If you took the photos yourself, you own all of the copyrights in the photos and can see to it that a DMCA notice is filed. If you did not take or...

A personal injury attorney. Your daughter should immediately start receiving good therapy as well.