immigrant screening process

[Jim Adrian]

I have an inquiry on my sfr rental from a young immigrant couple.  They have itin number, been in the the states for 8 years and have paid taxes and will to provide tax returns.  Claims they have no credit score because of the itin number.  A quick google search says they may or may not but would have to provide extra paper to find out. They listed the drivers license number as Mexico Consular.  I use the credit rating to show me late payment history and outstanding debt.  Is there any other way to verify this?   Trying to give the people a fair evaluation.