Yes, you can buy templates on behalf of your clients (one template per client for regular licenses)
Rating your own file is wrong but as an author, buying a competing item and rating it 1 is far worse.
^ likes wearing bikinis and scuba diving goggles
^ his 3 nipples inspired him to come up with his profile name
I don’t usually watch Eurovision, but all the songs I’ve heard in this contenst are absolute garbage imho. Of course, I haven’t listened to them all, but I’ve listened to enough to get a general opinion
HTML templates cost 15 bucks
I don’t think you have to delete the files from your computer (what if your client deletes the files by accident :D), but it’s forbidden to use the same template for multiple clients if you buy it only once. If you want to use the same template for another client, you buy it again (one purchase per client). Standard license if fine, you don’t need an extended license for that
Yes you can do everything you asked about in your post . I think it would be better if you bought the templates yourself instead of your clients, since you’re gonna ask for support (if required), and usually authors provide support ONLY to the accounts from which their templates were purchased