Drugs are on their way to being decriminalized with most of the harm either shown to have been caused within the prohibition model or to be myth. Drug dealing will be come less of a problem.
If I had a drug dealer living next door and they were quiet and respectful I would stay out of it I would feel quite dirty if my building was populated with developers and property investors knowing how many elderly and crippled people were driven onto the streets so you can all have you high rents and not see the victims