The only thing i've done differently is added a "choice" custom field because I saw this as a way for the user to define the type of post they were creating (whether for residential or commercial customers) - and so the values of the "choice" string are the aforementioned.
Now id like to filter the results between those two options on the listing page, in either a tabber or dropdown selector.
Is a choice or boolean field the best way to devise a "post type" here? How would i create filtering on the listing page? The above article suggests they would write how to do exactly that, but i dont think they got around to it.