My grandfather (100). How can i get paid for caring for him in DC?

My mom passed in 99, an only child. I had to resign in va, I have POA and on his Directive. He has renal failure, prostate cancer, incontinience, gout, and his kidneys are functioning at 12%. He declined dyalysis and requested DNR. He has outlived all friends, family and siblings except for one sister who is almost 90. I understand there is a 30 day class I have to take in DC in order to qualify. Where do I start?