What documents should I have my designer sign to protect my invention and any profits I make from future sales?

You need to contact an experienced patent attorney to prepare a contract with the designer that assigns all rights to any inventions and know-how...

What recourse do I have for a sheriffs website posting false information on their website and facebook page?

You have asked in the wrong practice area. You need to speak with a criminal attorney.

Besides a business license and an "Are you over 18?" checks on the site, what do I need to legally sell eliquid with nicotine?

You need to obtain local and state licenses and a tax ID. You also need to clear and register your trademarks with the US PTO. Your website...

I'm thinking in produce toy figures with historical scientist, they will be commercialized with crowdfunding ¿Is this legal?

You should be ok with Darwin, Newton and others who died in the 19th century or earlier. However, the estates of some of those scientists who have...

Even if a site doesn't use my business name can they use my services without permission?

Interesting scam! No, they can't do that. It falls under the rubric of unfair competition, as causing confusion in the public as to the source of...

Is this a copyright infringement of some sort, or what can we do?

Your father can retain an experienced trademark litigator to advise the company and peruse remedies for trademark infringement (Not copyright). ...

Many companies, such as Apple and Xerox, for example refer to themselves in marketing materials, including their website by their trade name or...

Can my trademark registration remain valid if my product is only available at my store and the sales volume is not very high?

As long as you are marketing and selling your product in interstate or international commerce with the US you will be able to maintain your...

The title of my book is descriptive of what the book is about, can I patent it?

You cant patent or copyright book titles. You can register the copyright in your book, however. I think you are being concerned about trademark...

Is my company infringing on a trademark?

Based on the information you provided, the goods or services don't appear to be related. The other company also does not appear vary trademark...