Unless your agent is available 24/7 and can submit your offer like a hot potato, you may be disadvantaged by waiting an extra day.They may have been in the business for 5 minutes and have less experience than you.The listing agent gets to keep 6% of the commission if no buyers agent is involved.

There are advantages to 15 years and disadvantages depending on your goals.

Any disadvantages on a heloc?  

What are the  advantages and disadvantages  using this strategy ?

This is a completely unknown scenario to me and I am wondering if anyone can give me advice on what to consider, request, research, advantages, disadvantages, risks, risk mitigation, required/recommended paperwork, etc.Thanks!

To play devil's advocate a bit, the disadvantages may be (1) keeping the integrated team busy, having enough in the pipeline to fully utilize your staff and run efficiently all the time, and (2) when the market goes south, and it will, if you employ a lot of people, it's really hard to downsize quickly enough to stay efficient.  

The main disadvantage of a license in my opinion is the record keeping required (files of the forms completed), but most of it you would want to do anyway.

There are various articles on the internet about the advantages and disadvantages of various corporate forms, but if you are serious you should probably sit down with a partnership attorney and hear what he/she has to say.

What are the advantages and disadvantages of using a live in resident manager as opposed to a 3rd party off site property management company?

It has some obvious disadvantages, but it can be done.