Michigan (not sure)

Michigan allows charity raffles.  Please the following for more info:

Mich. Comp. Laws § 432.101 et seq  Charitable Gaming Division of Michigan lottery.

http://michigan.gov/documents/BSL-CG-1824_26045_7.pdf

Potential Issues to be aware of:

Lotto or lottery cannot be used in advertising of a raffle or on the raffle tickets.

Physical tickets must be used in a the drawing.
License info must be printed on tickets.