Thank you for reaching out! You can find full details about the BookLife Elite collection here: https://booklife.com/about-us/booklife-elite.html.

When you opt your ebook into the collection, it will be made available for libraries to license through our partner platforms, such as OverDrive, Boundless, The Palace Project, and Cloud Library. Per the BookLife Elite agreement, you retain complete ownership and rights to your ebook, so you’re free to continue distributing it through any other channels you choose.

I can’t speak to the specifics of your Kindle Unlimited agreement, but I’d recommend reviewing their terms to confirm whether they allow distribution through other platforms at the same time.

I hope this helps clarify! Please don’t hesitate to reach out if you have any other questions.