They want me to discount the rent since they lost their food and its chilly in the house .  

For example, in most states, a minor cannot void a contract for necessities like food, clothing, and lodging.

The neighbors say he has no income, they often bring him food.

I frequent the east side all the time because I love the food and the feel of the town.

House is not cluttered and everything was put away, but there are food crumbs all over the floor and the steps are full of debris like they haven't been cleaned since they moved in.

I was busy running a food blog and was pretty hands off.

At the top of the food chain is your Fannie/Freddie product which basically has the highest standards, but the lowest costs and rates. 

Or stuffing massive quantities of bones and food down a garbage disposal.The damage was around $10K.

Just food for thought.Secondly I get where you think you are going to see overall appreciation but remember two things: cashflow and appreciation aren't the same thing and never buy property when you're exit strategy is strictly appreciation because you can't bank on that. 

It uses a food grade additive called Polyphosphate/siliphos.