hi. thank you for helping out in Panama. have you ever tried using JOSM? it would help you a lot with alignments, and with better shaping the buildings.
the front wall of most of these buildings should be aligned, parallel to the street, and most of them (almost all of them) at the same distance from the street. that's comparatively easy to do if you map using JOSM.
extruding (key binding: x) a building is also quite straightforward with JOSM.
if you need help, please answer here, or come to some community. myself, I'm on the non-official Telegram platform.