Oddly enough, it depends on the term of the lease. If it's a month-to-month tenancy then yes, he can. If not, the lease is effective at time of signing and may not be changed without mutual consent.
It can go either way, depending on what the landlord wants. If they want you to sign another lease, they can require you to do so if you wish to continue living there. In absence of another lease, you are considered to be on "month to month" under the same terms as the original lease.
Absolutely.
No. A lease is a legally binding contract, which obligates both the landlord and tenant to a tenancy for the term of the lease. If you and the landlord both signed a lease, and the landlord refuses to give you occupancy of the property, you need to see a landlord-tenant attorney or tenant's rights group immediately!
No, just signed by the Landlord and Tenant.
No
No, just signed by the Landlord and Tenant.
Adding a roommate is considered a modification of your lease. It must be approved by the landlord, or the landlord must allow you to sublet. If neither will happen then yes, this is impossible.
It depends on the term of your lease. If you had signed a one year lease, an additional year may be offered at a higher monthly rate. If you had signed a longer term lease, the landlord cannot increase the rent during the course of the lease unless specifically permitted in the lease.
Yes, if it has been signed by the Landlord and Tenant.
Normally a security deposit is paid before the lease is signed. Once your lease is mutually signed then you have the right to move in.
The natural demise of the lease is grounds for eviction. The process varies by state.
no take him o court that is illegal all the way