Can I take aleve the following morning after taking Advil migraine at 745pm the night before? Is it also ok to take mucinex (guaifenesin) multi cold?

Depends. If you are not taking advil today, it's ok to take aleve. What's in mucinex (guaifenesin) multi cold? if it has naproxen or ibuprofen, then not ok.
Alternate medication. Taking Advil at night and then Aleve the next morning should not be a problem. You definitely never want to take at the same time two different anti-inflammatories such as Advil and Aleve thinking that will give you more pain relief. Taken at the same time, you will not see increased relief of pain but have risk of irritation/ulceration of your stomach. Ok to take Mucinex (guaifenesin) multi-cold at same time.