Access to property while tenant is not available

[Chad Huffer]

So, we've decided to sell a rental that we have.  The agent needs to get in to look at the condition of the property, however, the tenant is not available and may not be available for approximately 2 months.  Obviously we'll be waiting to sell until the tenant returns and has time to move.

There is no state requirements for access notification, however the lease does provide for a 24 hour hour notification for non-emergency access requests.

My question is:  If the tenant will not be available for an extended time would it be acceptable for the agent/management company to enter the property to assess the current condition for purposes of a subsequent listing?