Renter asking to Sub Lease

[Billl D.]

Hello, I have a tenant that is asking me if he can sub lease a room or two in the house he is leasing from me. He has been a good solid tenant in fact he was the previous owner that we purchased the house from and he stayed there to rent it back from us. He really would like to stay but it seems like it has become a bit difficult for him financially. Should I say yes or should I ask for some additional fee per month or ?? Please advise and thank you.