I am renting a 2bd apartment, want a housemate, but want to be able to give housemate notice to vacate if it sours. What's the best type of agreement for this?

My lease forbids subleasing and all tenants must be co-signatories to the master lease, thereby making them jointly liable. However, I want protection against:

*my housemate damaging the premises and leaving me on the hook
*my housemate refusing to pay rent, etc.
*the overall arrangement souring due to a personality or other conflict.

I would also like to control their proportion of the rent, i.e., charge a bit more to reflect the hassle of finding the place, providing full furnishings, and setting up cable, internet, etc.

1. Would a co-tenancy agreement work even if they were signatories to the master lease as well? Does anyone have a better suggestion?

2. Should I request my landlord strike the sublease prohibition and just do a sublease?

Thanks in advance.