Buffy2323 said:
I know that we can't proceed at all until I have a divorce paper in hand
Technically, you can proceed without being divorced (just separated) if you are in a common-law relationship but you must be residing with your sponsor for a year. "Cohabitation with a common-law partner cannot be considered to have started
until a physical separation from the spouse has occurred. A common-law relationship cannot be legally established
if one or both parties continue their marital relationships."
Please see OP2 http://www.cic.gc.ca/english/resources/manuals/op/op02-eng.pdf
5.38. What happens if the common-law partner (principal applicant) is married to another person?
Persons who are married to third parties may be considered common-law partners provided their marriage has broken down and they have lived separate and apart from the spouse for long enough to establish a common-law relationship – at least one year. In this case they must have cohabited in a conjugal relationship with the common-law partner for at least one year.
Cohabitation with a common-law partner cannot be considered to have started until a physical separation from the spouse has occurred. A common-law relationship cannot be legally established if one or both parties continue their marital relationships.
Officers must be satisfied that a principal applicant is separated from and no longer cohabits with a legal spouse. This evidence may be in the form of a signed formal declaration that the marriage has ended and that the person has entered into a common-law relationship. An officer may require that the person produce other written evidence of a formal separation or of a breakdown of the marriage. Acceptable documents include a separation agreement, a court order in respect of custody of children identifying the fact of the marriage breakdown, documents removing the legally married spouse(s) from insurance policies or will as beneficiaries (a “change of beneficiary” form).
You should also read 5:49
I think the fact that your sponsor will still be residing with her common-law partner (even though the relationship has ended) may cause untold problems for you both as far as immigration is concerned. They are quite specific in their wording regarding "physical separation" ... and living under the same roof is not a physical separation.
I think your sponsor and her former partner are going to have to try and arrange for the property to be sold or buy out the other.
I hope it all goes well for you and please feel free to ask any questions!
