Could you sue the vendor? Sure, you have the freedom to sue whoever you think wronged you. Should you sue? That is a more difficult question....

If there is a song in the public domain can I record it without gaining permission?

First, please be sure the work is in the public domain. Some songs that are very old are still (at least allegedly) covered by copyright. For...

I have LLC in CA, I have a client frm overseas who asked me to be their headhunter. Interview in FL, do I need license for that?

No, the location of the interview is incidental to the conduct of the business. Enjoy the (Pseudo-) Sunshine State.

Is stating a civil lawsuit is a limited liability case the same as stating it is a limited civil case?

I think someone got the terminology wrong, but you are on the right track. "Limited liability" means organizations like corporations or limited...

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Can I use an animation movie character in an app I am creating?

No, it is not all right to use someone else's copyrighted character. You need to get a license from the copyright owner, which tend to be very hard...

Can I print some stickers to support our team (SF 49ers) and pass it out for free?

While I'm a 49ers fan, I'm afraid that without permission from the owner of the trademark rights to the name, you are risking far too much. The...

Are the managers of LLC personally liable if issues occur while LLC is suspended?

There isn't enough information about what the "issues" are. I assume that there is a lease, but it is hard to know for sure. If so, did the...

Can a California company deny reimbursement for mileage and travel expenses?

There is another situation that is possible, that you are an independent contractor, and therefore responsible for your own out-of-pocket costs...

The way that you are proposing to use the QR code, to identify the source of the work (yourself), would probably qualify as a trademark, although I...

Is there a way to legally include a company's software/logo in a private tutorial video on a membership (paid) website?

The question seems to be whether you could use another company's trademarks in your video. It is possible to do so through something called...