Yes, contact the schools and find out what they will require from you to process a special request and consideration regarding financial aid. As @thumper1 and others have said, it can vary widely from school to school how they will handle this. With significant assets, (rental home) and still some income , not likely that a significant amount of PELL will come into the picture if a reset is done on the income used on FAFSA.
Your family needs to look at this situation as something that will. Impact finances for several years at least. Even if a school gives you more financial aid this year,they are not going to take into consideration the fallout from being recently unemployed when A new job is found. So a quick band aid fix for just one year, not going to necessarily be what your family should be considering. Also merit money reducers aid, and the $13k scholarships your students have gotten pretty much covers Texas instate tuition i know in NY, there can be consideration for getting tuition only covered in the SUNYs but expecting the colleges to pay for your kids living expenses not likely to happen
So look at your options, and get whatever info schools will want either now or later for reconsideration if financial situation.