Are properties usually cheaper than what’s advertised online?

[Nathan Asher Robson]

What are the basic principles here when looking at listings on sites like Zillow, Redfin, Roofstock etc?

Are advertised prices usually a little higher than what they’re worth? Are they pretty accurate otherwise?

When going through the listings, should you take a % off the advertised price before negotiating with the agents?

Thanks so much!