What do I need to do to start an Etsy business using a Print-on-Demand production partner?

You really need to flesh all this out with a lawyer in private. You will want to set up a liability shield like an LLC just to create a legal...

What IP issues are involved in publishing a book for profit that contains many quotes of many people from various sources?

You are free to quote what someone said. That is not an issue in itself. What you do with those quotes can change the analysis. Before you...

Can I use an excerpt from one sentence from a poem (by a living US poet) in a video piece, without permission from the poet?

Using quotes will generally be permitted. This is largely because using what amounts to a very small portion of a much larger body of work will not...

Sport license?

We can't address things like pricing here even if we had any idea. There are lots of entities that have licenses to sell branded items, but the...

How do I know what [legal] documents to ask for when hiring a small game company to do work for me?

I agree, you are asking a lot of questions here and the answers are not going to be very helpful in context because there are a lot of nuances to...

Preregister copyright for a book with a game based on it that is already preregistered?

You received some good responses. Preregistration serves as a place-holder for limited purposes, mainly where a copyright owner needs to sue for...

Can I produce an application that generates wallpapers from album art?

I don't how this would not amount to infringement. it could be the case that you are permitted a personal use of some material, but I'm not 100% on...

How can I get an IP for a character?

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

You are free to resell any lawfully purchased item and you are not required to purchase from an authorized source, but doing so ensures the best...

Is there anything proprietary about knowing about an independent company's technology?

Are you contracted under any written agreements? If not, then you have a lot of latitude, but as noted you still need to be careful not to divulge...