There is no such thing in English law as a ?common law wife? (or husband). Many couples wrongly believe that they will automatically qualify for some protection under the law if their relationship breaks down. But their relationship with one another is not recognised as having any legal standing, and they have no special status in the eyes of the English legal system. The law effectively treats them as separate individuals with no rights or liabilities to each other if the relationship ends.
For such couples, this has far-reaching consequences for their home, their children and their finances.
Unlike married couples, unmarried couples have no basic rights to their partner's property or to maintenance if they split up. Basically what is his is his, what is hers is hers, and what is jointly-owned needs to be divided.
If a house is bought in joint names, it should be split accordingly on separation, and either party can force a sale of the property to realise their share. If the parties are contributing unequally to the purchase price, or to payments on the property, for example if he is paying 70% and she is paying 30%, this should be reflected in the amounts they take away with them.
If the property is in the sole name of one party, it remains that person's property on separation, unless the other party can establish that there was an intention that they would be entitled to a share in the property. Proving this can cause much stress, expense and frustration.