What is my Land Lords liability.

To whom it may concern,

I moved into my town home in May of 2009. Around August I started getting bites on my arms and legs. At first I thought there was a rouge mosquito in the home. After about a week I was told that it may be bed bugs. I then proceeded to get some information online on how best to find these insects. After a few days I found the evidence I was looking for (fecal stains on the seams on the box spring). I then found a fairly large one and taped it to a piece of paper and showed it to the administration at my complex. They proceeded to bring in exterminators to take care of the issue. The exterminators helped, a lot, but after about 3 to 4 weeks they just stopped coming. The last time they were at my home they told me that I would have to get rid of my bed side