gs just decided to move to the next unit, and then the next one, until they were eventually back at our place. This took place for an entire year, before we finally could afford to move.

The landlord will never spray the entire building,use a reputable or professional exterminator and two of his tennants insist on bringing in wooden objects they find on the side of the street, obviously making the problem worse.

This isn't the only infestation but to stay on topic I'll sumarise that any potential tennant should avoid this entire stretch of buildings (all owned by the same landlord) like the plague.