Each lender can use any of those to determine credit worthiness of a borrower.

wrap your mortgage with a note and try to sell the note...to do this you must find a somewhat credit worthy borrower...600 credit and downpayment

For example in my market we have a bank that does lines of credits for high credit worthy individuals off of flips and rentals up to 75-80% of value even if you just purchased the property. 

This borrower is NOT credit worthy.

My question is, are the buyers not very credit worthy if they have to use an FHA loan?

I spoke to a Canadian banker he told me there are rarely defaults from home owners as the government really have tight control on loans making sure borrower are credit worthy.

You’ll get much needed experience and become more credit worthy.

Were talking a market here that returns 3-5% with "creditworthy" tenants.

For example, a great way to start is to establish and build your credit worthiness.  

my first association would be a striking resonance with the many infomercials out there (Than, Armando, etc) that paint the picture of someone maybe buried in 50k in debt, living in a garage, trying to make ends meet and then somehow they hear their 'calling' and start 'flipping' wholesaling' or otherwise investing in passive income property despite having any creditworthiness nor savings, somehow. seriously?