Young, Income = Expense, Red flag?

[Srinivas Prasad]

Hi, Young boy and girl friends tenants  planning to move-in together.  Both know each other for many years, in stable job for more than 1.5 years, together make 3x rental.   They have no savings and last 6 months bank statements show income= Expense every month. 

Girl: 700+ credit score, moving out of parents home and no loans.

Boy: 590 credit score and sharing rent with friends now. 

No savings to cover for deposit+rental before move-in... Red flag? 

Thanks.