700k for a retiree is not a lot of money.However,he is lucky enough to get it.Does he have any other sources of income?This is because the advice you give to this man heavily depends on whether he has another source of regular income.You cannot advice a person without another source of income to buy land or any longterm investment that does not give cashflow.Assuming worst case scenario where the man has no other source of income,I would advice him to leave the city and find cheap land in the village,and rear 3 fresian cows which will give him at least 30ltrs a day...selling the milk at sh40 per litre,he gets 1200 daily,for the rest of the cows lives...
A successful man is not he who gets the best, it is he who makes the best from what he gets.