I guess I'm a "nice person" and many tenants have been nice to me --- I suppose the Golden Rule in action. 

Some companies will not write a home with knob & tube, even if it is inactive. 

Licenses have to be renewed every 2 years so if you leave CA after 2 years you could just go inactive if you do get licensed there first. 

I served two years active and 6 years inactive and was able to use it immediately.

Your license is considered inactive until you hang it with a real estate brokerage, you will not have MLS access.

You can always make your license inactive once you've purchased all of the properties that you want to hold. 

Your ability to move those dollars, from one deal to the next, and understand "how" and "why" this must be done or lose money if your money is "inactive", is critical. 

Hi all, new report from Bright MLS.Following four months of Moderate demand for homes in the Philadelphia Metro area, buyer interest decreased in November, in line with the typical seasonal slowdown in activity at the end of the year.

It will just cost you money, and, more importantly....time. 4 years of inactivity (or less activity) are years you can never get back.

They don't want to insure an inactive job site.