You're question is phrased oddly. Unsure if you're trying to... 1) Auto post Facebook content to a WordPress site... or... 2) Auto post WordPress content to a Facebook page. My guess is #2, so you'll use https://hootsuite.com or something similar. You must be very careful about how exactly y...
First of all, get an NDA in place. Then discuss with the potential partner what type of resources they can provide you to assist with time to market and after launch. From resources to operations to marketing, etc; what is the overall sense of the partnership.