accept the 14 million dollars one time payment.
Pay 4.2 million dollars in federal taxes
Pay About 1.5 million in state taxes.

Well, now I have a miser $10 million dollars left... which would allow me to move back to CA and buy a little cottage in Palo Alto, maybe the house I sold 20 years ago...

If I ever won a billion dollar plus lottery…
 

After paying off my student loans and buying some property in the countryside (which naturally would have a comfy cabin and basic amenities: water electric covered carport and wood shed, huge bathroom & kitchen etc), I would secretly meet with the Governor of my home state and democratic lawmakers and forge a way to finance all county clinics and sister hospitals to provide meaningful health care for everyone. No health insurance required. If there is anything left to spend, then I would like for it to go to facilities that can treat unclean water and make it clean water for drinking and bathing in.

Not sure that this could or would happen, but I definitely would pursue free healthcare care and clean water for all.