During this time of transition for you or if you plan to stay at the upscale apartment forever... You both work, you have 2 active children and a large "hyper" dog. The dog is accustomed to a large yard and freedom so expect some type if rebellion from the dog when he/she will now be cooped up
in an apartment.
What dog wouldn't be hyper after staying home alone all day? Much less alone in a confined space when they are accustomed to more space?
Hire a pet sitter to relieve you during the day and allow this dog some much needed attention and care.
When you are home, either you or hubby take the dog out for potty time and exercise.
Do not leave your children in a 3rd floor apt with no access to help if needed. Too many things can happen, especially at those ages. Even if your monitor reaches, do you really think you could get there fast enough in case of fire, choking, home invasion, etc?? NO
As for going to the lobby for drinks.... Go for it as long as you have a responsible sitter watching your children. If not, have your happy hour at home when your children are safely tucked into bed.
Don't take chances when you don't have to. Children are too important.
Eta: as I posted your SWH appeared. No one here is being judgmental. You asked for opinions and got them. Just because you don't like some opinions does not constitute judgment against you. Chill