Christine is the freeholder of flat, a lease over which Christine granted to Marie in 1994 for 50 years. Christine wishes to sell the freehold, but is concerned that there are a number of restrictive covenants which may influence the sale. Christine has heard the phrase "touch and concern the land", and seeks your advice with regards the following:

1. How does one ascertain whether a covenant touches and concerns the land? and
2. Whether the following "touch and concern the land":
   1. "no business to be carried out on these premises"
   2. "maintain the roof of the property"
   3. "cut the grass in the front garden"