I don't know that under 580 is even a thing in the current environment where everyone tightened up somewhat.
Not to mention that if your credit score is < 580 you typically have some fundamental flaws in your credit profile that merely require a few behavioural changes in order to improve your credit score anywhere from 50-100 points within 3-6 months depending upon your own unique circumstances that one should truly be aware of prior to "making life's biggest purchase", IMO.
Working to increase the scores will save you thousands of dollars over the life of the loan and one should truly do their best to improve their credit before buying a home so that you don't drastically over pay or fall prey to those whacky non-typical lenders or owner financier investors.
Im not under 580, but Im definitely between 620 and 660 and I wondering if any information is available for scores in that range as it seems everyone has upped the minimum to 660+
Thank you in advance.