They look a bit scrawny and out of proportion.

Rework your drains, then backfill and compact. 

If you want to blow it out of proportion, or you've been sold snake oil more than once, I am very sorry.

I think the partial payment concern is getting blown way out proportion.  

An accessory dwelling is possible although very compact.

For example, in 2013, African Americans were arrested at a rate more than double their proportion of the general population.

And if you are in lower income areas, that proportion will be even greater IMO.Just food for thought.

So if you have a net excess in power produced the utility will pay you for it and if there is a net use you just pay your now lowered utility bill.I think that the easiest if you look at doing this is to find out how to keep the tenant out of it, so you AREN'T considered the utility and subject to regulatory issues ect. but you also don't just want to lower your tenants utility bill $100/mo and not be able to charge a proportional rent increase.If you can have the electric metered so your generated electric is sold directly to the utility and you get the normal rent amount and the tenant pays their full electric bill then I think it would be doable otherwise I think that you will end up with a big installation expense and no big rent increase to cover the costs.

That's a collapse of almost epic proportions.

This eliminates salty PM fees, gives me control over data and payments, and eliminates mystery surrounding the commensurate proportion of repair cost to repair performed.Reporting is Key: What is the reporting capability of the prospective PM?