I made some minor repairs and moved rent out the property with a rental company and I just bought my second property.

Find a good landlord attorney, develop a relationship, and get legal advice. 

I recently had a conversation with a representative from the Lending Deck company.

This is a direct conversation from my email about this exactly (names and companies withheld of course):Me: This is Under contract-accepting backup offers on the MLS so does not make sense it is here also (in a wholesale email).Them: We have it under contract.Me: Yeah but why would anyone buy something from you that was on the MLS and they could have bought direct?

Indicate that, if they do not inform the insurance carrier of this, they are jeopardizing their coverage as the Insurance company will find out when you file suit or your Insurance company goes against their company in subrogation. 

Hard money companies are not going to stay in business by causing ruination in their customers.

Aside from calling a commercial waste collection company which may be costly, is there any other solution which may cost less?

It's good to have developers who have experience with container building but not a hard requirement since the installation isn't too complicated and would get help from the factory who make those container homes as well.I've been working with container manufacturing company who build 90% of the unit (prefab) from Vietnam and ship to the US.

But, the water company and APCO will let you know if you have to get a permit and inspection to get utilities turned on. 

My wife is actually an account exec for a Development Lender up to $20M and my company lends up to $3M.