As shocking as it may seem, Santana Moss is actually listed in Yahoo! People Search.
If you look him up, it gives you his address. I live about 10 minutes from him and my parents live about 2 mintues away, so I know the neighborhood well. It's definitely the Lansdowne section of Leesburg, so that jibes.
If you pull up the address on Google Maps with satellite view, you can see that all of the homes on that street are high-end townhomes... here in Northern Virginia, at least, that means something very specific. It means you're pretty much right on top of your neighbors and you essentially share the same backyard, often with just a low fence separating you.
http://www.mapquest.com/maps?city=L...2:-77.486892:0:::::1:1:1::/io:0:::::f:EN:M:/e
If that were the case, then it's highly plausible that they'd be able to see him interacting with his kids, and that her husband would be able to jaw back and forth with him a lot.
The one thing that I'm not sold on is if his kid would be old enough. I'm pretty sure I remember what Hos remembers with him having a kid when he was in college. But that still doesn't necessarily mean that he's currently a teenager.
There's a ton of circumstantial evidence, but not enough to be positive, IMO.