Tenant rights when landlord want to sell ?

[Sepid Pooy]

My landlord wants to sell his house this summer while my lease will terminate in the end of the year. Before I renew the lease last year, I have added the following items as an amendment to the lease agreement so that we can live in this place with safety and comfort:

- 48 hr notice for showing on a few days during the week, no weekend and open house 

- no lockbox installed 

- no picture taken from our personal property (landlord has a set of pictures when the house was empty)

I was wondering what legal rights does tenant have to enforce this amendment since the landlord really don't want to pay attention to them.