Can I sell and perform my songs in the us as an immigrant?

Sure, why not. I mean, if you are here earning an income then you have immigration law concerns like anyone else coming from another country. I...

Can I trademark a name that's similar to other trademarks? *Read Explanation*

Before you invest in any trademark make sure you get some legal guidance upfront. It is of course best practice to clear it before you start using...

Can I prevent users of an online software from altering it's original intention from a legal stand point?

Well, sure. Use of your software will be governed by your own End User License Agreement and copyright law in general. You need to get some...

My question is listed in details and explanation?

It's fine to use another work as an inspiration. But if your work ends up being "substantially similar" to the other by way of replication or by...

In order to get real advice on this and as noted above by others, we really need more facts. When did they claim they started using the trademark...

The proper documentation to protect a trade secret like a recipe is a non-disclosure / non-use agreement. Usually, this will be language that is...

I'm inclined to say "if you have to ask..." The test under copyright is called "substantial similarity" and under trademark it is a "confusingly...

Can I create an art piece using screenshots of users from Chatroulette?( May contain nudity). Not for profit or commercial use.

The nudity part is not relevant to the legal analysis unless that violates law like for example depicting minors in sexually exploiting scenes,...

Can I create & sell original 3D puzzles in the U.S. and protect them with a copyright?

Any creative expression like a puzzle will be covered by copyright law automatically. Then you register the work with the US Copyright Office so to...

As noted, "transformative" speaks to copyright. On that note, maybe your work would obviate infringement, maybe not. The bigger issue is that...