1. I have a list of ideal parameters that I know can't all be fulfilled, so I am hoping you all can offer some suggestions that will come close.
We will definitely have a young dog with us (whom I will be carrying for some of the mileage) so that immediately rules out a lot of terrain. We can, however, take our dog to Inyo, Muir, and Ansel Adams; so those are the places I'm focusing on, though I'm open to others.
2. High, but not too high. We'll be driving up from LA in late evening and starting the next day, so we will be acclimating on trail. My wife had some discomfort at 10,500 a few summers ago (her first time at elevation) and her brother and his girlfriend have never been at elevation. However, I know we all want to get out of the trees (especially me...), so I'd like to find a route that has some elevation but that at least doesn't require strenuous exertion at the higher points. I would definitely say anything above 11,000 is pushing into the red and I would be more comfortable if we maxed out at around 10,000. It would also be good if the route was in an area in which a trip could be salvaged if someone needs to descend.
3. Mosquitos. July. ...Yea, I know, I am asking the impossible, but if anyone can make recommendations on routes that minimize the likelihood of soul-killing black swarms, please share. This will be my brother-in-law and his girlfriend's first foray into real wilderness and I'd really like to avoid turning them off to the experience by leading them into a blood letting.
So with all that in mind, I think my ideal route would be a short (5-10 mile) hike in to a nice area for basecamp with opportunities for an interesting day hike from camp. My thoughts are that if basecamp is at a reasonable altitude (8-10k) we would have a good chance for everyone to be comfortable and those who are comfortable could continue to a higher elevation on the day hike. We would hike out the 3rd day. The other benefit of this is I won't have to carry my full pack and our dog every day

The next best option would be a loop with gentle days, maybe two 8s and one 4 or something.
Either way, ideally we would see some nice big mountain views and some alpine lakes.
I was initially thinking something in/around Mosquito flats would be perfect, however after reading posts I'm starting to think that the name is pretty literal? And, that might push our elevation a bit high, depending on the route?
Also, I know some might disagree with our decision to bring our dog, she'll be young (5 1/2 months) and she is small (mini aussie). However, she is fully vaccinated, well trained, and I will be carrying her as much as necessary. It's unfortunate that her presence rules out so many amazing places, but she's definitely a member of our crew

Thanks!