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

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). 

Its a business that require a lot of TRUE liquidity.

That is very true!

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

If you didn't budget your rehab correctly, and don't have access to more money, you will be stuck (this is also true if you buy with cash without any excess money).  

Is this true? 

Is NOTHING sells for a refi appraisal price  I  mean nothing that appraisal is always high.. so when folks say hey I got a refi and it appraised at this and I now have this much equity that is also not true and wishful thinking..

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

It’s true that freshly renovated properties should have lower maintenance costs in the first few years, but this doesn’t account for unexpected expenses.