We have 3 days for a house hunting trip that is paid for by my company. How can we maximize our time?

Three days is a good amount of time, actually, but you will need to be very focused and do your research thoroughly in advance so you will be fully prepared.

Spend as much time as possible looking at listings on -line, after you make some decisions about what's important to you (and, of course, at this point you must have gotten pre-approved so you know exactly what you can afford). Develop a good list of the properties that interest you and you would consider buying (don't be TOO rigid, as things tend to disappear or you will otherwise rule them out,so if the list is too small you may have nothing to choose from). Consider the areas you like, the distance for commuting to work, schools, access to transportation and amenities like shopping, etc. Price may restrict you to a limited area, but try to be open to a range of properties and neighborhoods, as you can rule them out on your trip if they really don't appeal to you.

Let your REALTOR know in advance the properties you want to see so s/he can arrange a tour of as many as possible. It is not unreasonable to see 10-15 a day (some people see more), but that will depend on the particular market and the number of homes that are in your price range. Your REALTOR may also suggest homes that fit your criteria that for one reason or another did not end up on your list, or may know of new things that will be available. You are there to look at as many homes as you can so you can decide, so expect to spend long days touring. Check to see if anything new has come on the market when you get into town so it can be added to the tour.

Go in with the attitude that you WILL buy a home during your visit, not  "I hope we can find the home we want." The right attitude will help you focus on the goal of making a decision. Keep in mind that no home is perfect, and narrow your list of possibles down as you tour, then go back to see the top contenders so you can decide. Watch out for the "kid in the candy store mentality" - that maybe there will be another home out there that you will like better. With that approach you can keep looking forever and never make a decision.