<human>: Can you condense the text into three sentences or less?

We recently (less than 30 days ago) found out that our apartment property had been purchased by LIT and our rent would be raised from $650 to $910 effective Sept 1 if we choose to sign a new lease.  Over a month before this notice, we had made what we consider to be a verbal lease with our landlord (agreed to $30 increase in rent, stay for another year, said we'd be happy to sign any documents but he never brought us anything to sign). For both that month and the month after being purchased, we continued to pay our new agreed upon rate.  Now (with 5 days to spare), LIT has finally responded to our almost daily emails and calls only to inform us that they do not have anything noted about our "verbal contract." We saw this coming.  But now when we informed them that if there is no "contract," we are considered to be tennants at will and that requires a 60 day notice of any change or termination we were told that their lawyers assured them they only needed 30 days.  At this point, we are just trying to buy some time to make decisions and explore are options.  Has anyone had any experience with what our best legal defense is?  So far we have just been using the GA Landlord Tennant Handbook.
<bot>: We are getting screwed by LIT. How can we prove a verbal contract and does a tenant at will legally require a 60 days notice of rent increase from landlord?