prospective tenants with a criminal record

[Erela Plotkin]

i have a couple that is interested in renting, but there seems to be a lot of questions marks, both criminal background checks came listed as in review, he just started a new job 2 months ago, she does not work, and the landlord of the last place they rented sold his home and moved out of the country so he cannot be reached to ask him any questions. What should i do?