This is am imporant element to assess.

15 FULL SERVICE listing at one time will consume all the band width available for the solo agent. If you understand the average number of hours each transaction takes (the type of real estate effects the average) it is easy to project the maximun bandwidth available.

If other methods of selling a house is presented to home owners, the total count can be modified upward if 'no touch' models are offered.

The reality is, "full service" to many agents simply means, what ever I feel like or have time to do, therefore, allowing a higher count to be maintained and a dissappointed seller in the wake.

I agree with richard Weeks. if I have too many listings I will hire an assistant.

No if that happens you hire an assistant, or a listing specialist.

I never set limits on my success, that is counter productive...

William Feela - these is no cap on that! We can always grow the team....

I had thirty a couple of years ago and found out it was to many.  

I won't do more than 5 at this point in my life.

I have not thought about that William. I have a hard time saying no to business.

I have to say unlimited for me. Just hire more assistants.

Not a set number, no.  Same thing for the number of buyers I take on.  If or when I feel I can't deliver the quality service I demand of myself, I refer the clients out.   Sometimes, I can put clients together without even listing.   That happened last week, buyer wanted to make an offer on $600K property but required a buyers contingency.  Came to view home, we discussed price, and told her I have a client in mind I am working with (whom I had showed over 40 homes).  Brought him by the next day, and we are under contract on that and the $600K listing.  Nice when things come together.

Never; the more, the better