Am I able to get a puppy?

Hi , as the title says i’ve been thinking about getting a puppy for around a year now but i'm not sure if it’s “doable” in my situation. For context I have 4 dogs at home, so i’m used to the puppy stages.I plan on getting my puppy before Christmas break so it can be around my other dogs at home (all vaccinated and regularly checked at the vet), and have an accessible backyard(I will be home for a little over a month) However, after that month I will be taking it back home with me, I live in an apartment with no balcony and no puppy area…meaning I would have to take the puppy up and down to use the restroom. I am free most of the day except for later in the afternoon due to night classes and on Wednesday’s from 8-4. My questions are: 1)Is the transition from an accessible back yard to my apartment going to ruin potty training? 2) Has anyone tried having a grass pad in their apartment? If so has it worked/ does it stink? 3) Are there any recommendations, breeds you suggest for a medium sized apartment, or tips that helped you? I’m willing to pay for training or any other resources that could help this transition. Thanks so much in advance.