Thanks all. I will see about reaching out to a contact I have in the city offices for details and the proper contact. However, before doing that, it appears that I may need to table this idea. As @Jay Hinrichs speculated correctly in that I am quite green. That said, I feel I need to start somewhere. I may be starting to research one of the toughest venues with no experience and limited network and limited capital... I feel I need to start somewhere though. I drive by these opportunities every day, twice a day.
I will say that one of these lots is off the market so to say. There is an FSBO sign laying down in the tall grass. The county records show that this is now held in a trust after a deed transfer a handful of years ago. A thought was to wholesale the lot, but that is likewise a no experience venue for me. (I did just start reading "If you can't wholesale after this".) However, my thoughts progress from there, "Why can't I have something built myself?".