Ask HN: Advice on my website potentially being acquired

I have a company in California as a LLC and another company is interested in acquiring one of my websites and all of the data and intellectual property involved with it. The website is a SAAS product with Braintree as the gateway. I don't have much experience with this, and was wondering if anyone can provide any insight to: 1) If the company acquires the website, are they actually buying my company out? 1a) If the company just buys the website and my company still is mine, does anyone have insights into the tax liabilities? I'm guessing I would get one huge sum of money in one shot? 2) Does anyone have any experience on the transferring of IP to another company and the transition process? 3) Anything else I should consider other than talking to my accountant? (also this is a throwaway account)