Unfortunately I can relay to this issue! Three of my guest in the last year brought me bed bugs. Everytime I treated it, it cost $1000 and 3 weeks. But I got it under control each time since no one in between complaines of bites! Interestingly, the ones that bring the bed bugs are the ones complaining of bites!
The law clearly states that this is the landlord's problem, even if it is a problem brought in bu guests or renters. But treating is expensive and costly and I feel it is a shame that no insurance covers that!
By the war, fumigating your house will kill bugs but not their eggs ....
Roaches and ants are preventable but not bed bugs!