Hi Kenny.
Thanks for posting the project here on Freelancer.com
As per my understanding you want to use setup your one PayPal account to both of your Magento stores, for this we will use PayPal API which will get the things done easily.
I'm Santosh Singh and I've over 8 years of experience in Web Development
I can help you in finishing this project in time.
I've placed a PLACEHOLDER bid which I'll change after discussing final requirements with you.
100% quality work is assured.
Looking forward to working with you.
Thank You.
Regards,
Santosh M.