Take a look at BP's blog where new articles are published every day: https://www.biggerpockets.com/blog4.

Also check out this article published last year on BP on this exact topic/question - hope it helps!

I have read a lot of books published by bigger pockets and other authors on real estate investing.

Be sure and read @Avery Carl's book, Short Term Rental, Long Term Wealth, published by BP. 

For example did they publish timely?  

I published an 11-part series on all about DSCR Loans here on BiggerPockets in case you haven't seen them yet - should be very helpful hopefully!

Along with Shannon, I recommend reading 30-Day Stay by Zeona McIntyre and Sarah Weaver, published by BiggerPockets.

Take a look at BP's blog where new articles are published every day: https://www.biggerpockets.com/blog4.

Take a look at BP's blog where new articles are published every day: https://www.biggerpockets.com/blog4.

Since a mechanic is an expert at repairing autos and not playing Nostradamus and predicting exact future, they use an industry accepted, published, estimation table to predict the appropriate billable time for said repair, known as book hours.