Purchase through a receivership

I guess what I was trying to convey is that the buyer should be sure that the person who signs over the title has the authority to do so otherwise the signature isn't worth the paper it's written on??? Can the person in charge of the receivership (who is not the legal owner of the car) sign the title as if he/she was the owner of the car and will the License and Tag office accept a signature that is not the actual/legal owner of the car???