Can you get sued by your landlord for leaving at the end of a 30 day notice when your on a one year contract
It depends on whether your lease agreement had a 30 day notice requirement to get out of the lease. That is the standard time period that allows the land lord to find another lessee. I suggest you review the fine print.
If you signed a one year contract, yes you can get sued.
If you signed an 1 year lease then your liable for the whole year. So yes, he will get his money.