Obviously, a free clinic is set up for those people who do not have health insurance or who do not have enough insurance and who can not afford certain exams and procedures. That means the guidelines should have a lot to do with how much money one takes in each month but also about assets like investments.
There should never be requirements for those who can be treated at a free health clinics. All places of health care should be absolutely free of charge to anyone who passes through the doors. The idea of profiting off of someone's health issues makes me want to go crazy sometimes.
Hopefully in the future we will not need free health clinics, but I do not think there should be requirements for those who can or can not be treated at a clinic like this. These clinics adopt their own rules and follow them, they shouldn't be forced to follow the rules set by someone else.
No, there should not be requirements for who can and cannot be treated at a free health clinic, because the people who put up the donations for the clinic should be allowed to reap the benefits too. People go to a free clinic for all kinds of reasons. They should find help there.