There are numerous property management companies you can call. I would suggest looking up Tomah area property management companies and start calling. Otherwise check out Craigslist, many landlord put their rentals on there. With Craigslist be careful not to get caught up in any scams -- in other words, do not send any money to someone who is not in the area to meet you at the home.
It really depends on whether the condo association allows rental of the unit. In many situations with Condo's, the association will not allow the renting of a unit. If you need further information on any association, please call me at 235-5115. I can make the calls to the associations for you.