Cockroaches in mother’s house.

I live in metro Atlanta, where it is common to see a roach or two during the summer, but it usually simmers down around this time. When I went in my mother’s kitchen, I saw a giant roach chilling on the oven ready for dinner. Lately my mother has become, lazy to say the least, and I was wondering if the roaches are coming from her new found habits and how we can get rid of them. My mother is home all day, literally, and she doesn’t wash dishes, has fry grease in a bowl, and she’ll leave grease from bacon, burgers, etc. in the pan all day. Do these habits invite roaches, if so, how would she get rid …