Form 3, Form 6a and comments on Form 6bis have been amended to meet the new notice requirements. If you wish to supplement or remove certain parts of the rental agreement, you should stick to a lawyer to do so. Under the Renting Homes (Wales) Act 2016 (which is not yet in force for most), standard use agreements replace short-term leases guaranteed in Wales. We will prepare further documents as soon as this law is in force. Updated rental form 3: notice of ownership of a leased property on a guaranteed lease or a guaranteed agricultural occupation. A well-written lease has advantages for both landlords and tenants, specifying who is responsible for repair and maintenance, setting rents and setting notice deadlines. .