I buy 10 year policies that basically provide legal rep of 1 to 2 mil if we get a construction defect litigation.. 

I can get 20-100% discounts if product is defective (even if minor scratches)

However, the cost of rehab IS ALWAYS difficult especially in my market as the 2-Family homes are EXTREMLY old (1800) with underlining latent defects which are always found along the way.

So many times there are a lot of defects that aren't disclosed and eyes on the property with boots on the ground are the most import 

Make the tenant walk every room upon move-in and note any defects, again you can be explicit in stating these will be categorized as "emergency" vs "non-emergency" and then choose what to fix.

That is of course unless people see no issues in materials so radioactive they need to be secured for centuries currently being in canisters that are known to have defects hundreds of years shy of their designed life, but cannot be inspected because they are so radioactive.

She has other glaring defects.

ALL that/those mentioned, is "warranty against defects, from the manufacturer." 

Usually, porches and some garages are not attached to the house itself, meaning the foundation and sides are not attached to the foundation of the house, and structural defects will just reflect to these areas. 

There was a defect with the roof - long story about a contractor who screwed me on the roof and I didn't find out how much until this lawyer comes along to buy the house, and his building inspector or roof inspector declares an issue.