Migrate from Quickbooks to Zoho Books -- 2

We are a small home mobility company that sell our products through a website as well as through square using our mobile phones. Currently using QB and square which are both connected to the website, however the inventory is not synched. We would like to migrate from Quickbooks to Zoho books and migrate/setup from Square inventory to Zoho Inventory.

1 - Migrate from QB to Zoho Books
2 - Migrate inventory from Square to Zoho books/inventory
3 - Synchronize sales between zoho books and Wordpress website.

Thank you