Key takeaways from this article: Mom makes a habit of harboring wanted men and Naomi's body showed no outward sign of homicide in the initial evaluation at the scene. Obstruction charge stems from Mom claiming she was the one who found the body when it was actually a wanted male who she then hid in the house and who was later found and arrested. Unclear if this is the same wanted male referred to as Naomi's boyfriend in the initial story (who was arrested as part of the initial missing person investigation).
My guess is that this is a drug house owned by Mom that dealers operate out of in exchange for drugs and
@ohemgee.kay925 is correct that Naomi snuck back into the house in the morning when everyone else was asleep with the intent to sleep it off while continuing to make everyone worry about her. The confusion about two different addresses might mean that one house was Naomi's and one was Mom's (with similar activity in both) but then we might wonder why the wanted guy hid on the same property when he could have gone to the other. I personally lean toward it being just one house and there was an error in the reporting at some point.
I expect the autopsy will make it considerably clearer about exactly what happened but never crystal. This'll be a cloudy one.