RealEstate wp pro 7

hi,i have some question need you help befort i buy this theme,
RealEstate wp pro 7 is unlimited to post last?
if have any problem when use,e.g.cannot show google maps…,i can give my admin login and password to support to fix?
the price is US? how aboutthe total price is?[ hong kong dollar]one year support.
how about the price next year support fee?
and next time when i need support,how to find help?is here?
thank you very much