In 1978 Bangers Developments decided to make use of a vacant plot of rough ground it owned on the edge of town. It drew up plans for the conversion of the land into a skatepark but put the project on hold because it lacked sufficient funding to proceed with it.

In 1988, when Omar, a local farmer, noticed that the ground was empty, he decided to make use of that part of the plot closest to his farmland. In the spring of 1989 he began to cut back overgrown bushes before tethering four goats on the plot during the summer months. Early in 1990 he spread fertiliser over the whole plot and then planted carrots and potatoes in the corner with the most fertile soil. By the middle of 1995 Omar had planted the entire plot with vegetables and fruit trees, installed an irrigation system and laid an area of hard standing for his tractor. He then built a small storage unit for his other equipment. In early 1998 Omar built a mesh fence around the entire plot to protect the crops from being eaten by rabbits and deer. Some years later Omar met Thelma, the CEO of Bangers Developments, in the pub. During their conversation Omar explained that he would 'willingly pay a token sum' for the use of the land.

Last month Bangers Developments was successful in obtaining funding to allow it to carry out its development plans to create a skate park. Its solicitors have now written to Omar asking him to leave the land immediately.

Advise Omar.

This was my problem question, i would like to know what relevant cases and theories I could mention and how to structure a good answer.