Does it violate copyright law or something similar if I create a coloring book of random famous people and market it online?

If they are live people you could be violating a right of publicity. If they are famous, but historical, and if you derive the images from...

Does my store name infringe on this preexisting trademark?

It depends on what you sell. If it's an online store selling auto parts and the other is for clothing it is less likely to be confused than if...

This sounds sufficiently risky that you should retain a lawyer and obtain a confidential opinion. Two risks jump out from the facts: you presume...

Can I sell something made off of a creative commons sharealike (CC BY-SA 3.0)?

If you want interpretation of the terms of a specific contract applied to your facts you should retain a lawyer and get a confidential opinion. ...

Can I post videos of individual expressions as they answer their door?

Get releases. Otherwise there will be an Avvo post 'the floral delivery guy posted a video of me, can I sue?'

First to use trademark help?

Save your evidence. First use is important, but so will be the mode and manner of your use. Something that is or is close to trademark or service...

You are making too many assumptions and conclusions, but you raise important factual inconsistencies. Contracts aren't like Lucy's football...

What type of lawyer should i look for when making sure I’m not being scammed by a company that helps make peoples inventions ?

Read the Federal Trade Commission guide on invention promoters. https://www.consumer.ftc.gov/articles/0184-invention-promotion-firms/

Can I show my photos on my own new company's website of kitchens that I designed while working for another company?

It's a sufficiently complicated set of facts that you should get a confidential opinion from an attorney. If you were an employee who took the...

Can You Charge a Small Booking Fee for referring someone to another company without an agreement?

There doesn't sound like there would be a trademark or copyright issue. It doesn't sound like you are describing a patentable subject. If you...