I am itching for a second at this point. I can tell I'm getting closer. Jackson is now 4. I'm so happy for you and Luma!
We part-time live with other dogs (over at my dads house) and there's 3 of them and they're honestly in such a routine, it's not a big deal. We just feed them all at the same time, they all eat right next to each other and know not to mess with each others bowls.
Also, wanted to add, our female is the only one who goes to the bathroom in the house almost once a day... *sigh* She also marks on walks. The boys are great. Jackson will lift his leg on walks, but he squats at home, and never goes in the house. He trained in a breeze. I'm partial to little boys though, and prefer them