It varies by which state you live in. The law in the state of the event doesn’t apply to you unless you live in that state. Here are the state laws:
Arkansas, Kentucky, Louisiana, Michigan, Minnesota, Alberta (CA), Manitoba (CA), Ontario (CA)
No more than face value.
Connecticut, North Carolina
No more than face value plus $3.
Florida
No more than face value plus $1.
No sale of multi-day or multi-event tickets that have been used at least once for admission.
Georgia
Only the original purchaser, a charity or a licensed broker may sell for more than face value.
Massachusetts
No more than face value plus $2 (except that a ticket broker licensed by the state may charge for certain additional expenses related to acquiring and selling the ticket).
Mississippi
No more than face value for events held on state owned property and athletic contests at Mississippi colleges and universities; no limits on other events.
Missouri
No more than face value for sporting events; no limits on other events.
New Jersey
No more than face value plus the greater of 20% of the ticket price or $3.00 (except that a registered ticket broker or a season ticket holder may accept a premium of up to 50% of the price paid to acquire the ticket).
New Mexico
No more than face value for college athletic events; no limits on other events.
New York
No more than face value plus 45% of the ticket price for venues seating more than 6,000 and no more than face value plus 20% for smaller venues.
Pennsylvania
No more than face value plus the greater of 25% of the ticket price or $5.
Rhode Island
No more than face value plus the greater of 10% of the ticket price or $3.
South Carolina
No more than face value plus $1.
If your state isn’t listed, you can sell it for whatever you want.