As ballot measure sponsors prepare to turn in their signatures Friday, perhaps only one of proposals will likely qualify for the November election, with one still up in the air. A campaign finance measure is expected to qualify, but proposals to legalize marijuana for adults and to let a person accused of a crime to argue the merits of the law to the jury won’t make the ballot, backers said. It was unclear Thursday whether a so-called “personhood” measure, which would essentially ban abortion, will qualify. Backers were confident Thursday they had enough signatures to qualify Initiative 166. It is a policy statement saying that corporations aren’t human beings with constitutional rights and that money isn’t speech. It is a nonbinding measure telling Montana’s congressional delegation to support a federal constitutional amendment to nullify the U.S. Supreme Court’s 2010 ruling in the Citizens United case that removed restrictions on political speech for corporations and unions.