I know of a few funds that offer preferred returns, and project double digit returns in total.

Currently I add the guest's last 4 digits to the locks as a code remotely a few days before their check-ins.

A lot of design questions can easily be answered with pictures and digital correspondence. 

About 500 posts a minute of people that never make it into the double digits on their posts counter.

We are able to get double digit returns with very a passive investment.  

So, I am willing to learn and start slow with the goal to have a number of houses in the double digits which would be fully paid off in the next 20 - 30 years so that when I turn around to sell them, I would have a lumpsum that can add to my retirement.

Lots of new good paying jobs have moved to the area, and they are experiencing double digit real estate growth year over year.  

EDIT: Just to be clear.

(I was kidding about a morning edition as in the old days). 

FYI -- In addition to the $495 Professional Edition that Michael mentioned, my company realdata.com offers a $159 Express Edition which is geared more toward multi-family property.