how to transfer an ebay applecare

Thanks. So is there an ownership document? Do I need an AppleCare document? How about purchase receipt? Also, I hear the owner needs to disable something in settings that is more than just a delete and factory re install. If I have a few specifics than I would not overlook anything. I have to travel to another city to collect it, so don’t want to leave anything out. Thanks

That's a very helpful answer. Many Thanks. I know it's a better and safer bet all round to go for a an apple refurbished mac, just frustrating to wait for one I'm after. As I'm looking at old (2017) the choices tend to be limited to specific, off the shelf models rather than the custom build ones. Guess I may need to make a compromise and go for a refurbished one. Having said that, I am considering going for an ebay ipad, as it will get less use than the Imac, and I am willing to take the risk, especially as I'm less picky about an ipad, and they are generally quite cheap, so less of a loss. The same AppleCare issue concerns those. Would it be possible to finish any existing months left on an Applecare and just before it expires renew it. I'm not sure if Apple care is a one off 3 year policy, or if it can be renewed to carry on for another 3 years. Is that done, or do people not bother, as the product will be getting older and therefore less productive to use, especially as new OSX or IOS require better hardware to perform optimally. Thanks again.