Theres a strict pricing guide for rv/boat.Land, riprap, graded and gravel, fencing, lighting, Covered metal structures (usually 3 sides)Fully enclosed (climate controlled)You should build what has demand in your area.

When you have a deck removed (or made much smaller), what do you about the old metal & cement supports? 

You may want to paint things for now to protect the wood and metal. 

No one knows how to clean the lint and dirt from the cooling coils.

I met all the qualifications Jay requested in his OP: St Louis resident, POF, newbie investor, willing to give back to my community, and I partnered with an experienced investor to ensure a successful rehab.

First, what is the average cost (Ballpark figure) to replace old metal frame windows with new energy efficient window.

The large garage has been refinished with a metal and glass door, epoxy floor, and electric car charger.

One thing I like about Nuview is they offer precocious metals investing as well as Notes whereas Quest does not. 

The policy should be that Tenant does not receive keys until they have met all the requirements.

I think they may be more accepting of the hut construction as Prefab metal structures are more common in business situations.