I am so sorry for your loss. The first thing your family needs to worry about is getting through the next few weeks and months. I assume he was ill for awhile, but we are never truly prepared for losing a loved one.
When you meet with a financial advisor, you need to concern yourself with how best to position your money for your long term financial health. Paying for college will be part of that conversation, but you must make sure that you can take care of your own needs in the coming years.
Definitely be sure to add colleges where your kids would be sure to receive merit and/or colleges you are sure you can afford to college lists. You can contact the legacy school to ask about your situation and potential aid … but that is not something you should rush into. You need to figure out your financial situation before you can even have that discussion, and there will be time for that.
In the meantime, reassure your kids that you will figure out the college issues in time. Tell them that you have a lot to sort through, but that you will definitely address financing college as part of that.