Can I purchase two duplexes as a fourplex?

[John Vandivier]

I'd like to buy or construct an owner-occupied fourplex as a first deal. I'm not seeing a bunch of high quality 4 plexes in my area, nor am I seeing a bunch of 4 plex builders. I certainly might be looking in the wrong places and welcome resources, but I wonder:

1 - Can I buy two seperated but adjacent duplexes as a fourplex? 

2 - Could I build two duplexes and some sort of connecting structure like a single entryway and finance it as a 4plex?