moving to france

No when I became Australian I had to give up my Belgian citizenship as Belgium does not accept dual citizenship yet, I will need to live in Belgium for one year and then renonce my Australian citizenship before becoming an Belgium again, I do not want to renonce being an Australian as this country has done a lot for me.

We are both Australian, my husband came from Russia and I from Belgium so no problem with the french language for me, we would like to buy and run ourself a hotel in France, I tried to have some answers from the French Embassy in Australia but I have been given the roundabout, Brisbane office told me to contact Sydney and Sydney told me they could not answered any questions, I read on their website that to apply for a long stay visa you need to have papers like: a certicate form obtained at the Prefecture de Police of the area you intend to run you business in France and an agreement to sell from the previous owner. Those papers can only be obtain if you have already bought a business....I am confused!!! do I have to go to France buy a hotel and then apply for long stay visa? PLEASE HELP...