Florida is on course to spend $6 million to reach out to nearly 4 million uninsured people and help them sign up for coverage in the federal health law's online marketplace this fall. Maryland will spend more than four times as much, or about $24.8 million, to help about 730,000 uninsured. The District of Columbia expects to spend about $9 million assisting 42,000 without insurance. The wide variation in spending to hire and train navigators and others to assist consumers in the first year of the new marketplaces could have a major impact on how many people actually get coverage under the new health law, experts say.