To get a gas line to that house was going to cost between $100 and $125 per FOOT of run from the supply line one block away ... plus the cost of the heating system ...

This concept has been around for years with the rent-to-own furniture and appliances.

Some people go into a rehab knowing that they will have to do it and keep the paper work (contracts, copies of checks, supply receipts) ready for it.

I know that kids will cost more as they get older, that is why I am trying to get my REI career going now, so that I can afford to supply him with everything he needs.

However as you noted employment bases are crucial and are generally good foundations for tenant supply.

My bank was going to supply the purchase and rehab.

I think 40 psi is the minimum code for waste lines, not supply.

Are you saying you will never have an eviction, never have advertising costs, or never have to purchase office supplies or pay accounting fees?

Usually copper but I just had $400 in plumbung supplies taken.

There are countless inefficiencies and supply/demand imbalances which can be exploited.No doubt, as Jason said, there is money to be made investing your "private equity" into smal businesses that you have knowledge of (such as Joel mentioning buying a beaten-down restaurant franchise that will generate 60k of fairly passive cash flow).