You may be interested to see a recording which was done of a talk I did at London Landlords Day last September on Essential Legal Points for Landlords here. Be warned that the first few minutes is the camera running before I start talking (there is a long shot of the emergency exit notice for example and quite a lot of the walls).
I am a bit in two minds about giving this link because as usual my hair looks dreadful, but I do cover quite a bit of ground, if the subject of landlord and tenant law interests you.