It’s been claimed on this forum that you can use existing locations without any issues. In other words, set your ass pirates orgy on the Pirates of the Caribbean ride at Disneyland. But, when it comes to trademarks, I take a less expansive view, mainly embodied in this article:
Using trademarks
I have a lay understanding of fair use and parody of copyright and trademarks, but parody requires a comment on the original. I prefer to not have my orgies be tied to real world owners. Not that I expect to get sued here, but just in my head I prefer to follow the same rules I’d follow elsewhere.
I’ve used a few existing places (or formerly existing) where the usage has been neutral or inline with what those do. Crown Burgers and Bill ‘n Ada’s are actual diners that I use. But my characters tend to do little more than meet there and eat and talk. Bill n’ Ada’s is described as a ‘24 hour dive diner’, but, that’s what it IS. Well, used to be. You hadn’t dined until you’d tried their “brains and eggs.”
But, mostly, I invent brand names and locations, that have parallels for their inspiration, but I try to ensure they differ in a few key characteristics. This allows me to tarnish and defame those businesses as fully as I need or want to. I also find it more fun to invent them, that way I’m not limited by any of their real world characteristics. Thus, when I need a casino/hotel in a Las Vegas in my universe, things get set in the Arista.
Cast your mind back to the halcyon days of the original CSI television series. The visuals showed the real Las Vegas, but somehow casino names weren’t highlighted and all crimes took place in imaginary casinos.
I tend to invent brand names and locations too. For example in one of my stories the main female character is a flight attendant and the airline she works for is a fictional one, I wouldn't use an actual one. Like in the 'On the Job' story competition coming up I wouldn't write a story about staff at a McDonalds having an orgy.
Trademark laws can be very complicated. One good example in Australia is the Movie World theme park on the Gold Coast in Queensland. Visitors to the park can take photographs everywhere of all the buildings, rides, attractions and shows, and the costumed characters who walk around the park. However, photography is strictly forbidden in the gift and merchandise shops where movie and TV memorabilia like film posters, clothing and action figures are sold.