The water meter and shutoff are within the property, so no leaks underground.

If you have one pin-hole leak expect others. 

Staining was dry during inspection; a qualified contractor be consulted for further evaluation and verify the source of the leak, make sure its no longer active and, if it is, make necessary repairs.7.

Some landlords dread the kind of tenants who call in the middle of the night for a broken toilet and some dread tenants who don't call for a leaking toilet until the ceiling below is leaking... some dread both. 

We recently had a slab leak that affected the powder room and we are considering converting it to a kitchenette for the guest room and renting the room out as a studio apartment, or using it for one of our parents as they grow older.We bought the house intending to rent out the room in question (or use it form one of our parents). 

Things to check on rentals:I look under all the sinks to make sure drains or lines aren't leaking.I check the toilets to be sure the flappers aren't leaking and that the toilets are securely mounted.I check/change the furnace filtersI check the water heater for signs of leakingI check the HVAC drains for obstructionsI check/clean the gutters.

Upgrade your insurance in non-coastal counties - such as replacement cost coverage, flood insurance, insurance that covers water leaks. 

- at 5'7" and female, some things are simply physically beyond my capabilities).Size does matter on repairs tho - Had an HVAC system that the interior part started leaking last Fall.

Review that and see if it mentioned if they knew about the roof leak.

Costs a little more, but will last longer (30 to 50 years) with less leaks and need for future (15 to 25 years) checking on loose screws.Now I did not and am not giving a definitive answer on which is best and etc.