About selling a real-estate during immigration

First of all sorry for my English.
My family is going to (move) immigrate to Canada in couple of months.
For this process we have next plan.
I will come first to prepare a place for my family, needed money for 6 months (as it's requested by Canada immigration process) I am going to bring in cash.
Before my moving I'll not sell a house I own here to let my family to live there till their move.
My family will move late a month before visas expiration time. Before their moving they will sell our house and will transfer gained money to account in Canada opened by me after my arriving. Or a house will be sold even late by my parents it will depends on a situation on a real-estate market.
In this situation I would like to ask experienced people.
How do I need to declare my real-estate during my first border passing and settling in Canada to avoid any question and taxes imposing when this money will be transferred to Canada?
Thank you a lot in advance.