This will make it a lot easier to manage, will cost you less than buying on the market and typically you can get 1:1 rent returns.

If you can get in before a property hits the market, you can often negotiate a great win-win deal for everyone. 

Welcome Joshua, I work the Atlanta market.  

Pittsburgh has to be one of the best markets for house hacking so we are definitely blessed.

Unless you are finding off-market opportunities direct to seller, I can't imagine the deals working on BRRRR.

The "best market" is less about the market per se and more about the deal you're able to find in my opinion.

For example, you might choose to take a blanket mortgage covering all properties, BUT perhaps the market softens and later you wish to sell a property.

I've finally made the decision to get into the market to Build to Rent.

Look for motivated sellers off market and market via cold calling and or direct mail, geofencing, advertising and the like.A good wholesaler is as @Ericka Parrott mentioned, direct to seller, did good underwriting and can deliver an actual "Deal" whether buy and hold or flip. 

I highly recommend investing in a property management software, such as Hospitable, for syncing your calendar, automating messaging, and scheduling cleans, as well as a dynamic pricing tool, such as PriceLabs, for optimizing your pricing based on market demand, local events, and seasonality.