I’m a bit overwhelmed by estimating numbers for landlord-paid expenses (especially CapEx!)

Currently saving up some money to put toward an investment, I have been looking into rental properties for the most part, duplexes-quadruplexes.Since I am new to all of this, when I go to look at a property that I am interested in, will the realtor be able to tell me estimated repair cost, and ARV of the property, or should I bring a subcontractor to help me estimate the repair costs?

I own a property in NC with an estimated value of 55k.  

Scott The Book on Flipping Houses, The Book on Estimating ReHab Costs http://www.biggerpockets.com/flippingbookDownload BP’s newest book here some good due diligence in Chapter 10.

Scott The Book on Flipping Houses, The Book on Estimating ReHab Costs http://www.biggerpockets.com/flippingbookConsider checking out HUD homes for small multi's owner occupied gets first crack.Download BP’s newest book here some good due diligence in Chapter 10.

I will call around for a couple of electricians to come out and give me an estimate.  

An investor will discount any offer they make if the wiring is not upgraded--you must get a good estimate of what the upgrade will cost and what the house is worth and decide if it is worth spending the money.

Scott The Book on Flipping Houses, The Book on Estimating ReHab Costs http://www.biggerpockets.com/flippingbookPaul

I always install it when I buy a new unit, so I can't say what kind of increase is warranted, but I will say that I estimate my houses would rent for $100-150 less per month if they did not have CHA (comparing them to the market where CHA is not installed). 

Scott The Book on Flipping Houses, The Book on Estimating ReHab Costs http://www.biggerpockets.com/flippingbookDownload BP’s newest book here some good due diligence in Chapter 10.