Currently reading the BP book on this topic (because I live in CA) and it got me wondering which out of state cities/neighborhoods work best for this strategy. I want to start analyzing deals but the country is so large that Im not exactly sure where to start.

If you have a top 5 list of value-appreciating neighborhoods/cities with good cashflow it would be great to hear your thoughts!

You can search on Google for population growth, job growth, median income, diverse jobs, landlord laws, housing growth and prices. Keep adding filters until you're left with a few and go from there.