Did you have permission to sub-lease the property?

Most people won't deny you that and you have been given permission to enter even though it wasn't proper notice.  

I recently submitted a question to the legal department of the Florida Realtors Association (one of the perks of membership)The only difference is that I just got my brokers license, so I skipped the part of getting permission from a broker.The main thing was disclose disclose disclose, that you are a licensed agent.

I realize I cannot show the unit (unless I get permission to from the seller of course) until then. 

I've heard trouble of people getting access for permissible use.

Lets say you have a tenant which you allowed them to use the basement for storage and also gave them permission to use the washer and dryer in the basement.

Especially as an agent, you cannot market a property you don't own or have written permission to advertise.You have much to learn young padawan but i think the force is strong with you.

I've actually run a hose from a neighboring house with permission.

In NC you do not need their permission to show the place, unless it's stated specifically in your lease.

Any serious seller will welcome having access to this kind of free information.By getting a “yes” to that question, you just got permission to follow up regularly.