Can employees buy more than one licensed copy?

No. The program only permits the purchase of either Microsoft Office Profesional Plus 2010 or Office for Mac 2011

Is it a fully-licensed product or is there an expiration date?

There is no specific expiration date to the Home Use Program. If you leave the company or are no longer a user of the licensed software your license terminates adn your should discontinue use of the software.

Can I purchase a copy for relatives or friends?

No. The Home use program entitles each qualfied employee to a single license of. Employees may not make additional copies of the software.

Can I get more than one copy or install of the program on multiple computers.

Although you cannot purchase more than one license, it does allow for 2 installations on (1)PC and (1) portable device (ie. laptop)

Can I install this on my district provided computer/laptop

No district machines are covered under a different license.