bed bugs extermination

Hi

I need advice about my case , I received a letter from my  in the month of Aug stating that my building is bedbug infested and all the apartments will be inspected for any possibility of bedbug infestation . The exterminator inspected my apartment and nothing was found.however, in oct we sensed some activity and they sent an exterminator for the sprays. After 2 weeks they sent us a bill for bed bugs extermination and we called them and explained our part they totally blamed it on us. After that I wrote them a letter stating all the facts and it’s been more than 3 weeks there has been response from the Landlords side. Now the question is our lease is expiring end of this year and we are moving to a different state . We have to rent an apartment there starting jan 1st 2013. Please advice can they mention this problem in the new” Rental Verification From ” with the new apartment landloard. I have been staying in my present apartment for the past 5 years and we have never delayed our rent payments. Please advise Iam really worried if I’ll get another apartment or not?