@Raymond Garcia count the number of rooms. 

Thanks,Nate I'm not a lawyer and this is not legal advice, but there's a broad consensus that they aren't counting the number of total awake hours in the home, they are counting the number of nights your head is asleep on a pillow in that home, and >50% makes it a primary residence. 4 out of 7 nights a week would seem to tick that box.

Is it at least a house that can be counted on to appreciate and offer a long term return, instead?

Keep it mind only time on your owned properties counts (no research on future properties).

I recently did a count on the leads; about 80% of the leads came from Zillow. 

@Sweeney Mae Montinola - If you have a lease signed then they will likely count it.

Count beds and toothbrushes to confirm.I wrote a blog that has a lot of SEC 8 strategy and tips.  

It's unlikely that you'll net anything above 9% in these areas as you would in C/D areas as they're less risky but count on a safe 6-8% net.

In that time I can't count how many times I've used the calculator for a property I'm currently negotiating.

Sometimes I can find how many units are in the building online but never the count for each type.