Because you had the lease back, and were/are presumably a tenant, the new owner/landlord had/has the right to enter on proper notice for any of the...

Your post is a bit unclear. However, if you and the other person are month-to-month co-tenants, you would normally have the right to terminate your...

Many such addenda would constitute a binding agreement, and would not require you to separately sign the lease. If that is your situation, and you...

Some courts do notify tenant-defendants by letter that an unlawful detainer lawsuit has been filed against them. Such a notification from a...

If the parties did not agree on the basic rental terms, or sign a rental agreement, the tenant may have been entitled to cancel without penalty. If...

If it is exempt from state and local eviction control laws, the landlord would generally be free to raise rent by any amount after the lease...

If the owner knew about your subtenancy, and waived any objections (including by accepting rent after learning about the subtenancy), it is...

The situation may well violate a local noise ordinance. Have you checked with the police? You should also have grounds to seek a civil...

I suggest you immediately complain to the local code enforcement agency. As to at least some of the problems, you may also have the right to repair...

Changing the locks would be illegal and actionable - see e.g. Civil Code Section 789.3. I suggest you seek help from a local landlord-tenant...