One of my tool designs which I have registered is copied and produced. I have a registration with a company 2 years ago.

This question shows the folly of going to a "copyright registration company" for protection of the design of a functional item like a model train...

If I bought nude photos off of some one can I resell them?

Copyright protection is automatic under 35 USC 102, so the pictures are copyrighted even though you don't think they are. and, those pictures are...

If by serious you mean for serious money, not likely. And, you have to prove damages. And you cannot sue for your girlfriend or mother in law or...

How do I use a company logo legally, it is is possible to do so?

You have to get permission from NFL Licensing to do that, and the minimums are very large. Unless you will have six figure sales volume you are not...

Do I have a right to continue selling my product? Someone emailed a vague copyright claim, I think.

Ask for the title of their copyrighted material and the copyright registration number. Then, if they reply, take the reply to a copyright lawyer...

Do I need permission to release a mobile application that is a companion to a website that I do not own?

From what you say, you likely need permission as you want to use the brand name of a third party to imply an association with the third party and...

Do artists report as income the money that their talent managers spend on them , or do managers deduct it a business expense?

It's never black & white or Ebony and Ivory, it's more like 50 shades of gray. Sometimes the IRS might accept a big expense like a house as...

If a person owns the DVD, can they make a copy just to have as a back up, not to loan out or give away?

Yes, what you are talking about is (a) backup copying for personal use and (b) format shifting for personal use. The first is uniformly held to be...

Registering a trademark for a business name

"Acme Solutions" is a lousy trite non-distinctive name, so also you need to see a TM lawyer to discuss why and how to make it more distinctive so...

Is it legal to start a business in which I do music editing for people who do dance competition routines like fitness shows?

Well, what you precisely propose is problematic since you will not have a license to use the masters in this way. What you probably should do here...