This implies renting is initially cheaper than buying and at high LTV, rentals are initially cash flow negative.  

Tossed around quite a bit and it isn't what it once was, but the value is still very high based on past performance and brand recognition.

that we’ve learned in our 24 years, managing almost 700 doors across the Metro Detroit area, including almost 100 S8 leases:Class A Properties:Cashflow vs Appreciation: Typically, 3-5 years for positive cashflow, but you get highest relative rent & value appreciation.Vacancy Est: Historically 10%, 5% the more recent norm.Tenant Pool: Majority will have FICO scores of 680+ (roughly 5% probability of default), zero evictions in last 7 years.Class B Properties:Cashflow vs Appreciation: Typically, decent amount of relative rent & value appreciation.Vacancy Est: Historically 10%, 5% should be applied only if proper research done to support.Tenant Pool: Majority will have FICO scores of 620-680 (around 10% probability of default), some blemishes, but should have no evictions in last 5 yearsClass C Properties:Cashflow vs Appreciation: Typically, high cashflow and at the lower end of relative rent & value appreciation.

One of the REPS cases (I forget which off hand) they were basically like...petitioner states they spent 8 hours on X date supervising painters at the property and we find it highly unlikely that anyone would sit and watch paint dry for 8 hours. 

However, if you're a W2 high income earner or business owner, I can't imagine it makes any sense to flip houses, mail mass post cards, wholesale, or build lead gen websites with the value of your time being better spent other places (such as learning about real estate and increasing your income through proven means), such as at your 9-5pm or growing your business, and your real estate is a long term process and you don't need "home run" deals to qualify or make it work.

If you offer more $ for the property than the all cash offers AND you appear to the seller to be highly qualified in the method you are using for sourcing the payment, at some point your offer will be more appealing than the all cash offers.I don't understand why you would consider a 1031 for another property in two years. 

I would highly recommend them. 

Highly suggest some YT videos for training / help on the platform.

Turning a historic duplex into a high-performing asset while forcing $100k in appreciation is no small feat—seriously impressive. 

Some of my personal friends are on the list, and I highly respect them as my peers.