If it's a 'landowner voucher' then it might be legally transferable. Once the 'tag' is purchased, I don't think that part is transferable. The landowner voucher guarantees receiving a tag not subject to drawings or lottery. It is not a license or 'tag'.
About a month ago, the outfitter emailed me the 6 digit voucher codes for use in buying our tags. Then it was just a matter of accessing the NM fish and game website, logging into our individual account, entering those numbers, selecting the proper license and habitat stamps, and providing CC payment.
To their credit, NM was on the ball and our tags arrived within 7-10 days.