BRRRR question Buying with a loan or no loan?

[Simon Ruiz]

I just started to read David Greene’s book buy rehab rent Refinance repeat... and noticed at the beginning of the book He mentions buying the property outright then Rehab .rent and Refinance.... however, don’t people finance the property to get into the deal in the first place? What If one does not have enough money to buy a property outright.. Is the Brrrr not as effective if you finance first to get into the deal then Refinance later once the tenant is in pace???? technically should it even be called A Refinance If one has no loan against the property to begin with???