If you run into any single families or duplex's while wholesaling I will be very interested.

I bet she does!

I'm currently looking for a single family home to live in and rent out to some buddies. 

It will require a bit more research for you there.If you're not doing any buying/selling as part of the deal, then you're looking more at a Master Lease (subleasing) scenario and on a single family home, you're likely to not have much margins. 

I came across real estate investing when I fixed up my first single family residence and sold it for a profit of 60k.

You can't bet on that, so make sure the property flows a bit at the very least and focus on letting tenants pay down your mortgage for you.

If purchasing for hold and rentals, are single family, multi, condos or apartments more profitable?

Hello All,I am looking for single family homes in the Cobb County and the surrounding counties in GA.

First year goal is to househack a single family / duplex, then BRRRR going forward. 

Forget about the complicated stuff like cap rates, which aren't really used on single family, and definitely don't buy hoping for appreciation.