Renting to a person who is likely to file for bankruptcy

[Manoj N.]

I have an applicant - a nice family - who applied for my house. Their business went bankrupt in 2007 (filed for a bankruptcy then) and their second business  also went into debt due to non-payment from clients 2013. Currently they both are employed. He and his wife makes more than enough money to cover the 3*rent, but he indicated that they may file for bankruptcy in the future due to non-paid business bills from 2013. Their credit scores are low (<600). Otherwise their history is clean - no criminal cases or evictions. Their current landlord and the previous one have good opinion about them. What would you do in such situations ? Just say no ?