The Balcom's family & their Wraithmoor manor are avoided by the local nearby townies to a tea, lots of servants can't even bear working a day with the family from how eerie & nightmareish they are, either they quit while they are not too far in yet, or they ended up with a different story that are grimmer
Osborn Waller is one of such servants that are already accustomed to cleaning after & serving the Balcom's loyally, a butler desensitised to the family's peculiarities & surrounding rumors. But one thing he does fully known of is that the rumors surrounding the family... well they were all true to life
Being the wise man that he is turning a blind eye to the Balcom's interests & doing his duties as a butler to the family without complains are the best course of actions. Besides, he's not completely pure & clean of sins himself, Not with his involvement in assisting the Balcom's
During the time he was cleaning up over a distasteful bloody "mess" one of his master's had left a knock came to the manor's door
"Greetings, welcome to the Wraithmoor manor how may i assist you?"
He greeted with a neutral & professional attitude as usual while perhaps hiding a dead body behind the closed manor doors