Easy.For some reason this is the hard part I have seen in a few forums, you open the envelope (usually from a PO box ancient mail box device of some form).. take out the check and deposit it in your account (be as tech savvy or unsavvy as you like here)..I have not lost one in a decade this way...

After nearly three decades in the tax biz I can confidently say that the system seems neither fair nor logical at times. 

I've been flipping homes in parks for over a decade - successfully.

Here is a quick decade long summary of activity involving the largest Self Directed IRA (SDIRA) custodian in one county (Wake county) in NC.

My start will be small at first but I will plan for efficient scaling from the start to have the potential to be developing neighborhoods in a decade or three, with a lot of help coming from seasoned pros like you spending time on the forums. 

However, you are less likely to sell to an OO (assuming current trends hold stable over the next decades) - these areas are great for rentals, which means that's where investors go. 

Responses to your points:2) yes solar panels output diminishes over time, almost all are guaranteed to be producing a minimum of 80% of their initial output at year 25, twenty years after they already paid for themselves and they will continue to produce for many decades.3) inverters are typically warrantied for 10 years, again, long after they already paid for themselves.  

A decade or so before we met it was his job to go in and fix things up.

Depending on how you look at this, what's fortunate about the profession is that I believe the social status of architects has always been relatively high (especially in recent decades of the emergence or starchitects) but unfortunate in that the vast,vast majority of anonymous architects making a living, the pay is not equivalent to the perceived social status...well unless you are one of those aforementioned starchitects. 

I left traditional banks years ago...I've used only credit unions for my personal and business banking for more than a decade.