a good inspector will know what to look for. 

Find a market where you like the price to rent ratio’s.Then find an investor friendly agent who can hook you up with all the necessary vendors, Property Manager, inspector, etc....

I need some great (inexpensive) inspectors for foundation, plumbing and electrical.

You're inspector is able to do them all, but will charge differently, and create different reports based off that info.

Finally, since I'm OOS, I want to pay an inspector to check out the house twice a year, which should be about $600 altogetherSo for an imaginary $100,000 duplex with $16,800 ($1,400/month) in rent, my annual balance sheet should be:Mortgage of $5,400Property Tax of $2,000 (assuming 2% rate)Repairs of $840 (spent or saved)CapEx of $3,000 (spent or saved)Vacancy expenses of $1,344 (spent or saved)Property Management of $1,680Landlord Insurance of $300Inspectors at $600Total Expenses of $15,164Rental Income of $16,800Profit of $1,636Does this look right?

Obviously on the sell side I like shorter.Biggest reason for this is scheduling the inspector.

If you have questions beyond that you should always consult an attorney,  Accountant, inspector, appraiser  or your lender for specific information or advice  regarding a particular purchase. 

.- any addendums to the leases and all recent notifications that were provided to the tenants (IE rental increases).Try to be present for the inspection as a lot of inspectors share information that you otherwise won’t find in a report. 

Some of the repairs/upgrades suggested by the inspector are Central A/C (Currently window units), Upgrading the electrical breaker box & an in depth electrical inspection as there are some loose wires in the attic, pest/rodent control, and to fix a fence that is falling over.Also, can anybody help me analyze this deal?

I will have an inspector and engineer come out during due diligence if I make an offer,  but I was curious if anyone here had any ideas about the extent of the problem and possible repair cost?