Address for Visa?

Hi,

     Hoping to move to France in the next 12 months or so.  Ultimately my wife and I would like to end up running a Gite/Chambre d'ote.


We will have to sell our UK property to finance the purchase. Looks like we will need to buy the property and then apply for either entrepreneur visa or VLS-TS with enough income and then try and change it after 10 months?.


Seems a bit of a gamble to buy first and hope you get the working visa. i will also not have a UK address to put on the initial application, will a parents address suffice? Cheers