I have 100k to invest each year. 50k i put in the market(index funds) and 50k to put into rental properties under my business corporation.

If you think some random home in some random city is going to out earn an index fund or Apple or Goog stock ...think again as one was 100% designed to be lived in and the other was 100% designed for investors returns. 

At a 7% CoC return (what an Index Fund would have gotten you over the last 10 years, and probably close to what it'll get you for the next 10 years) you'll need $1.7 Million dollars of your own money invested. 

Even if you have all your tax-advantaged accounts in Index Funds (a-la Warren Buffet) you're probably going to get around 7% over the course of those 20-30 years, which is a pretty solid return for having zero time invested, and extremely low risk relative to other investments.

Okay, ever institutional investor has what they call the benchmark, to all it is the S&P 500 composite index cumulative returns (See chart) It is 11% per annum since I think 1914.

As a fairly stoic Boglehead by nature (passive, low cost indexing), I've had my doubts as to the efficacy of REI for stable, long term financial readiness due to a perceived "impossibly high cost of entry" for the community and my lack of knowledge. 

v=KrMxepieP1k&index=...Hopefully that helps :).Neph

But you can get bond index funds in either mutual fund or ETF version, over the short term the differences between he two shouldn't matter much, so don't waste time agonizing over which is better.

When I'm traveling for work my company covers everything so no expenses there either.Right now I save 60% of my paychecks to go into an S and P 500 index fund, 20% to fund some side ecommerce businesses (using what I'm learning at work, not making any money yet), and 20% for the expenses I do have.

Then go to their website and look at their management team page.But the surefire way is to go to the county recorder's office and run the name of the property owner (LLC) in the grantor/grantee index and look for a deed of trust or mortgage.