Help please!
my spouse is in a sole propietorship business. the business owes revenue canada a substantial amount. The business & personal debt is overwelming us. what can he (we) do.
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my spouse is in a sole propietorship business. the business owes revenue canada a substantial amount. The business & personal debt is overwelming us. what can he (we) do.

You have three obvious options.
First, you could try to work out payment arrangments directly with Revenue Canada.
Second, you could file a proposal to settle the debts. This option makes sense if you think the business may still be viable, or if you have other income.
Third, filing personal bankruptcy may be an option.
The correct option will depend on a number of factors, so you should contact a licensed trustee to fully explore your options.