If you're looking to BRRRR/flip, I do recommend looking into hard money loans.

Obey TorahBest, Larry Cheshier That’s interesting Larry but the issue becomes interest rates to borrow the money wouldn’t make this a valid choice.

I've never heard money/profit described as cute, so it's not important.The most important thing you mentioned, was the rent potential and ARV. 

But to answer your original question - either hard money or a traditional mortgage can both work. 

@Chinku Chinku the rich get rich by making their money work for them.They borrow at one rate, to invest in something that returns a higher rate - they profit on the difference.Only you can evaluate your risk tolerence though.

I have never heard of this metric and don't see any information on it online.

Is there a way to have No money Down or Low money down? 

My broker advised me to "bite the bullet" and close the deal, telling me that I should be glad I wasn’t losing money on the deal.

And she's hardly saving money if she's using an electric space heater as the only source.

Just make sure you are saving towards those slow months during the peak months, buy a deal at the right price (don't overpay just because its a turnkey STR or you think it will make more money than projected), and look into ways to increase bookings during those slow months with some marketing and operation tweaks.