Before you dive headfirst into coin buying, i advise you to get acquainted with some of the fundamentals of numismatics, if you haven't done so already. Make use of the menu on the left hand side of this page to explore the basics. You really should have at least a rudimentary understanding of coin types, grading, mint marks, value trends, and key date analyses before you buy your first coin.
nu·mis·mat·ics
ˌn(y)o͞oməzˈmadiks/
noun
noun: numismatics
the study or collection of coins, paper currency, and medals.
I really am happy for your help, but I intended to ask about virtual coins, sorry that was not more clear.
Considering the cost of a real lawyer or tax specialist, you may try to get some information on this forum. It won't be guaranteed, but it will be free.
& @darkangel11
Of course, free web "legal info" only goes so far, but the advice and the link look great, thanks!