Hi there, Hope you are doing great!!
From your job description, I came to understand that you have 3 WordPress sites which have separate databases in their Cpanel. Now you want a sharable MySQL business listing database. I have read all 3 points and can surely help you in the completion of this task.
I'm an expert WordPress developer. I have extensive experience with Creating/updating Web sites. I have great skills in PHP, HTML, CSS, Javascript, Jquery, WordPress, BootStrap, MySQL, database management, database recording etc.
I would love to share my IDEAS and suggestions with you for this project and want to know more regarding the project so that accurate timeline and budget can be decided. I assure you that you will admire my work and services.
I look forward to speaking with you soon!!! :)
Thanks,
Bharat