But my theory is something about tenants' handy skills or personal management skills may play a role (they may have intended to clean them but lacked the skills to pop them out or back properly--some fit tight-- or fully intended to keep the cat or kid off them--but life happened; or could be a teen sneaking out (or in) at night )...Second, the good news on screens is that after you make a few (see the frame kits and screen or materials in your big box store), it goes pretty quick.

That's great for 1 to 10 year olds but as for anyone who has pre teen to teenagers the last thing they want is to spend hours upon hours with their parents..

It appears to be a wealth of information and I'm happy to be a part of it.My family (parents) had a relatively small yet profitable involvement in rental properties during my teen years in which I helped out a lot with.  

I have had a passion for real estate since my teen years - most likely the result of being influenced by the real estate boom in the early 2000's, and of course the so, so many house flipping infomercials. 

Home remodel will be hard since you have to attend school in the day, but some kind of traffic-critical construction, emergency tradesman, or off-hour landscaper could be possible. if none of those are possible, get a traditional teen job and save up as much money as possible. once you graduate, go to college.

I have done well as a lender averaging low teens returns even though I've had a lot of loans default.

This is why young teens do stupid stuff in the moment without looking around the corner into the future about how it will in some cases impact their life.Anytime you have something questionable you will have to go through a rigorous process to see if you can possibly get licensed and will undergo a manual review by that state's commission.What you did whether changed person today or not is a pretty heavy offense.

In terms of IRR, you can expect publicly traded REITS to have IRRS in to high single digits to mid teens and Syndications in the mid teens to mid 20's or higher IRR. 

When I calculate total return: principal paydown, tax benefit of interest deduction on mortgage, cash flow, (I assume 0% appreciation), I am somewhere in the mid teens in terms of total ROI.

I am seeing ROI's in the mid-teens every year!