On the sickness of our community

Except for tax writeoffs and asset sharing, of those explictly listed here, you get the rights by virtue of being family already (though power of attorney is only if no one else has already taken the position…such as a spouse). Arguably, your mother already got tax writeoffs via the tax refunds for children and asset sharing is already there if you're each other's beneficiaries (and there's no real base to fight such a declaration as there might be between family and "lifetime partners" over assets).

Anyways, I don't see any obvious reason to deny it out-of-hand from a legal viewpoint.

However, this does make me think of an interesting scenario. Since corporations are legal people now and are basically treated easier when they break laws (in relative terms, not absolute), how long until someone tries to marry their business? Does this mean that corporate takeovers are slavery? I wonder if any pioneering lawyer would be willing to try such an argument.