I've never invested with his team, but he has the right philosophy and seems like a decent organization.

I have heard that they have pegged a number and I cant remember if it is 650 or 680 but if the tenants credit score is above it, approved, below, not approved, that simple, so they must have some basis behind their philosophy.

This is glossed over in the game and it is quite clear the the "Rents - PITI = Cash Flow" philosophy is implicit to the deals pulled.

The book not only provides ways to systematically BRRRR, but it also provides the mindset/philosophy that is needed in pursuing this endeavor. 

Quote from @John Underwood: This seems much more risky than owning property in the U.S.I personally would buy those properties here and then use the profits to travel to where ever I wanted.Yeah, this is my philosophy even in the US.

Having said that, I find I’m super drawn to older houses that are overlooked if they are in up and coming areas, as I subscribe to the philosophy that investing is not just for cash flow but appreciation and equity growth as well.

The philosophy "if they accept your first offer you paid too much" makes a lot of sense as long as you're not unreasonable and you nail one now and then.So if all other pieces of the puzzle (area, condition, rents, etc.) are okay, is it reasonable to start at 70% or 75%?

I don't give away hard earned/uncovered profits on deals just because someone shows up with a check, and I highly advise others reading this to adopt the same philosophy.

My philosophy is by the time you get ready to change the layout of your kitchen I guarantee you will also most likely change the floor too. 

I still believe in his philosophy of having a budget, live within your means, not carrying debt (except for a mortgage) and paying cash for everything  (or credit if you pay the full bill every month).