I have to agree with all the responses you have gotten so far. All buyers need to have a Licensed Realtor in the State of Wisconsin to accompany them into every home/condo for sale. All showings must be recorded with the Listing Agency showing Who the REALTOR was who went through the property, the date and the time as well as (not mandatory) the Last Name of the Buyer (for procurement reasons) as well as what Agency Relationship the Realtor showing the home/condo has with the Buyer they are taking through a property ... 3 choices here ... 1) Buyer Agency 2) Seller Agency or Pre-Agency. There is alot more to just getting access to a property involved here. Hope this helps. Best of Luck with your home search!
It is not uncommon for a listing agent to be required to let you in. If you have a buyer broker, listing agents commonly allow buyer broker to bring their buyer in without the listing agent there, but if you do not have an agent, then yes indeed someone has to let you in.
I am not certain why a listing agent being present would be a concern. Are they allowing you to see the home, look at it at your pace? While it is uncommon for the type of listing you're describing, high end homes and those with sensitive owners commonly require a listing agent to be present for showings. But, you can still look at the home.
Not sure what you're asking. Accord? I am not sure why a listing agent would require to be present for a showing when Fannie Mae is the owner. Often Fannie Mae has special keys installed or they want the listers to use a special combo lockbox but I have never seen a lister needing to be present. maybe just a control freak Realtor.