Hopefully, you'll get someone who will take reasonable care of the property and is not too noisy. I've been in my house for almost thirty years. I'm kinda anal about keeping my property pretty neat and clean. Most of the houses around me have been sold and resold. Fortunately, they have all been pretty good people. One thing I noticed is that the younger the couple, the less they care about keeping the lawn mowed and and general upkeep of the exterior. Who knows what the interior looks like. The younger generation doesn't seem to care much for taking care of what they have. The couple next door, both in there sixties, is a different story. She meticulously took care of all the flowers and shrubs she planted when they moved in until she got sick a few years ago. Now, I have a jungle next door because he doesn't bother pulling even one freakin' weed!
I could go on. Rant over! Good luck with your new neighbor!