As of June 1 2006, my 1 year lease was up and I was to continue my rental agreement with a month to month lease following he fullfilment of this one year lease. As of July 1 2006 the rental property was taken over by a new property owner. I never signed any lease agreement with this new owner and he is trying to keep some of my security deposit for miscellaneous things that he says are a breach of my lease. Do this new owner and I have a lease because I signed one with the old owner can he just take the lease over without my signature and the new property owners signature on the old lease?

I think that when the property is sold, the leases are sold too. The buyer has to uphold the agreement between the seller and the tenant. Read your lease. If you did breach the any terms of the lease, you may be held accountable.

Yes, when someone purchases a rental property they purchase the leases as well. Since you have a month to month lease that remains in force.

However, a security deposit is meant to serve as security that the tenant doesn't move out leaving damage to the unit and/or unpaid rent. I doubt if the new owner can appropriate any part of those funds while the lease is still in force. If they attempt to, they need to provide an itemized list of the charges.

Since you didn't indicate where you live, we can't check specific laws for your area. But there are "sticky" notes at the top of this forum that contain links to US state laws.