Rodents! Exterminator or cheaper DIY option?

[Benjamin Lemieux]

Hi all,

I was informed by a tenant of mine tonight that they can hear mice in the walls. They saw one today and decided to bring it to my attention. I am assuming this can be dangerous if they are building nests or anything or biting electrical wires. My question is should I hire an exterminator or something? Or just set some traps and see if that works? Anyone have past experience? Thanks!