I strongly believe so, the same way a business can check competitors' prices. If it's public, it's fair game. Note: I am biased, I'm working on a platform that

I strongly believe so, the same way a business can check competitors' prices. If it's public, it's fair game. Note: I am biased, I'm working on a platform that does exactly that, taking an orthogonal direction to real estate analytics: https://www.hellodata.ai https://www.hellodata.ai. Using 100% public data.