Customer service is very important but if you give an inch, they'll take a mile.

This is written in letters three inches high in the eternal book of landlording truths.

Well I don't want to do that... that could be between $600 to $900... and 3 months is too short.I thought if they went the first 6 months no late payments they get a free 55 inch flat screen.

Anything larger than 1/8 inch is $5, anything more than 1 inch starts at $30. 

Be firm be nice but don’t budge an inch

I wish I had a 3 ft crawl space in my first house , It was 12 inches in spots 2 ft most places and it had duct work and a gas furnace . 

There is a chart available to convert the inches into gallons . since you had nothing spelled out in the lease , its on your dime 

Just purchse one of the back pack plastic garden sprayers and really soak the roof.I am assuming firbrglass/asphalt shingles not wood shingles.There is also a zinc product that works well and if you are installing a new roof you can purchase zinc strips that are installed beneath the cap shingles with a small 1/2 inch band showing it will keep the black stains from starting.

Both slope a good 2-3 inches over 10 feet.  

With doing that you could have moved that useless cabinet that is over the fridge out a good 10-12 inches.