[birdmanjeremy]

It could just be targeting. While it's possible something nefarious is going on, advertisers are really good at using available data to predict information that was never provided. In the case of the kung fu movie, it's possible IP address was used. For the open house, there could be some location correlation, but I would bet it's more than that (age, financial profile, relationship status). You can feed a bunch of data about someone to an algorithm and predict these things with pretty high confidence.

The way to avoid this is to opt out of interest based ads. iOS and Android both have options for this.