It's not realistic in most cases because warehouses are built as that, which means they run much less electric and plumbing.

The coaching for Jonathan's The Land Method is NOT substantially cheaper. 

It will co-exist with other "new" payment methods such as google pay, apple pay and credit card etc, because the target customers are different.

That method will increase your ROE significantly more.Also read the BP book on BRRRR investing.

Find Brandon's videos on YouTube for the "four square" method of analyzing homes and practice.

Let’s break it down with the 70% rule to see if it’s investor-friendly:ARV: $190,000 (taking the middle of $180K-$200K)70% of ARV: $190,000 * 0.7 = $133,000Minus Estimated Repairs:Roof: $20,000AC: $4,000Additional repairs (general estimate for a property needing updates, say flooring, paint, minor plumbing): $10,000-$15,000Total Repairs: approx. $35,000Max Buy Price for Investor: $133,000 - $35,000 - $10,000 (wholesale fee) = $88,000Since you’re getting it for $91,000, you’re close, but to make it irresistible, consider negotiating the purchase price down a bit further.

Anthony,You would be surprised by using some old school methods like simply writing a letter like you mentioned. 

Would that method work again?

Each method has a cost in both time and money.  

It isn't the metric you can talk about on a national scale, but if you keep buying the same product in the same area it is a very easy quick and dirty method to know how you are doing compared to other buys.