Like I said, the calculator is telling me it's possible on some that I see on market now but I'll have to see if that is true in reality when I run the numbers with a lender. 

I’ve bought some houses with 0% interest for a year credit card loans.

Also, real builders/experienced developers will often have a true technician, i.e. a civil engineer, architect, real estate attorney et al at least glance at the property info to make sure there are no major red flags.

It’s true that while the 10% down payment for a second home sounds appealing, the fact that rate adjustments are now similar makes the distinction less about cost and more about strategy.A few years ago, I helped a couple in San Diego navigate this exact decision.

The greatest profits are in properties that can be repositioned to a higher and better use, or appreciate the highest over time, or will throw off a TRUE cash flow of 20% per annum on total investment (cash + debt + capital investment). 

Hold on to the cards forever (closing accounts or opening new cards can impact your score).

Your credit limit on an unused card will not generally affect your scores.

Most people who make a ton on Airbnb hire out designers, put in flashy amenities, and create a true experience.

Well, I keep hearing "if you find a good deal, the money will come"....like it falls from the sky or something...lol #4 Is true. 

If you want a second opinion check credit karma, ask your credit card or your bank.