Hypothetical : Should I consider this rental application?

[Luke H.]

Hi everyone hope all is well, 

Hypothetical : I received an application from a person that admitted breaking an apartment lease 6 years ago, but since the application doesn't say "no broken leases" on it, he wants his application to be considered.

This is a 2 bedroom house, the bedrooms are small. He is planning on moving in his girlfriend (non-working student), and 3 small kids.

I'm worried that this house is going to be too small for them and can see them leaving sooner than/ staying longer. Also, since it is 3 kids and only one income I can see the potential for issues (of course I could be wrong).

I appreciate your advice on this.