If you want to build, maybe don't build something on site, build it off site (pre-fabrication) and bring it on site.

If the fabric is in good condition, I may consider that instead.

There is landscape fabric under the rock. 

We used closed cell foam for the insulation and had a custom roof system fabricated out of aluminum trusses and coretin, in addition to having a porch on the south side of the container, all of which have mitigated any heat transfer. 

I fabricated this wood fired heat exchanger and it's inside the shell of a hot water tank. 

I watched a video of some folks that makes pre-fabricated homes and deliver them...

I do it on a 10' plywood table with soft fabric wrapped around so I don't scratch anything.

If it was really true that unauthorized tenants had moved  in, they created this trash....But of course the whole thing could be fabricated by management and are just doing it because I didn't have a walkthrough prior to leaving and can now exploit that.Seems like it's not my responsibility what happens after I move out when I've told 2 mangers and one maintenance personal that I plan to move out early and they said "ok got it"  Anyway I'm wondering what the best thing to do is if I get sent a letter from a collection agency. 

Allow her to email you her stories and fabrications, have a little disclosure on your amended contract that you record discussions, emails, conversations and so forth.Monthly inspections.

"Silicon" Valley is a misnomer now because there are no longer any fabrication plants there making the silicon wafers.When I moved there in 1979, suburban homes had replaced the orchards and farm workers couldn't afford to live there anymore.