Is it legal for me to marry my half brothers step daughter?

is it legal for me to marry my half brothers future step daughter? He met his wife to be 3 years ago, there is a an age difference between me and my half brother and I am the same age has his girlfriends daughter. This is In the UK. Thanks
Asked Mar 12, 2015
Just see if there anyway that your DNA and the person you are going to marry is not same at all.

Since she is your half brother's step daughter, that means your half brother and his stepdaughter do not share DNA. So it would be legal.
Answered Mar 12, 2015

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