They are actually made to slowly deteriorate over time. 

Older installations were done over regular drywall rather than cement board (Duroc) which was very prone to deterioration.

If the yard deteriorates due to mismanagement, tenants will be held responsible.Fines: Landlords are not responsible for any fines that the tenant receives.

That sitting in it's current condition, deteriorating isn't doing the home justice. 

The reason I ask because if you haven't, you wouldn't know that those pipes deteriorate from the inside out with no obvious signs of imminent failure.

I'm afraid that if I do purchase a house and rent it out while I'm deployed the property will deteriorate.

I have to agree,those numbers are terrible.You can do much better and should get at least 10 to 12% COC by looking elsewhere like Cleveland or Indianapolis for a duplex or triplex.If you can't raise rents and/or lower your repairs to 5% due to old or deteriorating condition,let someone else eat this turkey.

Meanwhile it was deteriorating in value.If you are nearing retirement most go for commercial NNN properties.Expectation of return is key.

By the looks of it i would say your Dad is right, it looks like the concrete has deteriorated due to water. you do not need a foundation co. just hire a mason to cement it back up inside, but first take care of the cause on the outside, get that leader pipe to drain away from the house by either extending the pipe above ground or dig a shallow trench and run a pipe under ground away from the house. also make sure the soil around the house is pitched away so that water moves away from the house.

All about the numbers and keeping them in solid shape as they deteriorate and depreciate faster than stick built homes.