I'd throw some 1/4 sheets (2'x4') of plywood up there to help with footing to stand on in that area.
You see those METAL FOIL wrapped ducts? Well, those are going to play havoc with you being able to receive good solid signals up there. I wouldn't do it, BUT, if it's your only option, feel free to try it. You might get lucky.I tried to put in a full panoramic photo of the attic area, but the site said that was too big. Anyway, I opted for the Televes Dat Boss Mix LR Full band antenna. I did some measurements in the space shown, and I can just squeeze in the antenna without disturbing the duct work. It's a bit of a no man's land with no flooring, so I'd probably have to sit on those thin pieces of wood while assembling the whole thing, but it's the only usable space I have without having to crawl under all of the duct work.
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They can't stop you from putting your antenna on your home. Google otard laws. If it was me ide put a hugesnet dish up just for sheets and giggles. You sound like your in an hoaI have a great signal location for my main OTA market, and I can sometimes pick up the next nearest market when tropo or night time ducting occurs with an outdoor set up at my old house. I'm trying to avoid an outdoor mount due to the fact that my house is the first home in the neighborhood. My builder is trying to make it look ritzy due to its prime location, and I don't want to detract from the exterior look of the home. Believe me, if I didn't have all eyes on my home, I'd love to put it outside, but that's not doable. My only other solution is just to get some good indoor antennas for every TV room, but since I've gone to so much trouble for an attic install, I don't want to discount it completely.