Not replacement and quit my job money. 

Inspections may cost more upfront, but they can save you from significant headaches and unexpected expenses down the road.Negotiate Hard: Use inspection findings as leverage.If the HVAC is near the end of its life, negotiate a credit for its replacement.If the cast iron plumbing is deteriorating and needs replacement, ask for a credit as well.Sellers often prefer negotiating credits over doing the work themselves.To give you an example: I was once under contract for an old house priced at $170,000.

When I have seen this done or done this for clients, the properties being crossed are generally refinanced into the same loan, replacing your first lien (blanket/portfolio loan).

I love your goal to build up enough cash flow to replace your income!

I am in the market for replacing my carpet and the cost for carpeting 1,100 SF is $8,000.  

So, if a tenant broke a window and it cost $300 to replace, you can simply add that bill in apartments.com and that way its all tracked where everyone can see it and track it. 

You also want to make sure you have Replacement Value so that if anything catastrophic happens you can rebuild.

The local casino just replaced free charging with 50c/kwh (4-10x the home price.) when they figured out people were just leaving their car there to charge while they went home.

When you go to buy a new set if you have budgeted for it, you can smile and know you got 50% more out of those tires even though you now have to pay a big chunk of money to replace them.

Due to the likelihood of needing to replace AC and/or furnaces in the next 5 years, there will probably be another year or two of near zero cash flow at some point.When I bought these houses, the neighborhoods had a lot of rental homes, but were still desirable affordable neighborhoods.