I've been seeing: AS-IS contract, Sub to addendum, Authorization of release, power of attorney.

As an investor friendly real estate broker focused on Oregon Coast STR vacation rentals for sale, these are the testimonials that affirm how powerful of a resource and community Bigger Pockets truly is. 

There’s a lot that goes into solar and power storage unless you just want to sell your leftovers to the electric company.  

@Kent KettellThe advantage of leverage is that it lets you extend your purchasing power.  

This will increase the return above what can be obtained on a passive investment.The flipside of having the power to control everything is that can be alot of work (and a full-time job if you are putting in sweat equity).

Also UPDATES ARE MADE FREE OF CHARGE..We all know how important environment is to development, i love the fact that their business model is about creating investor communities built for locals by locals and powered by one education system, this way we the people can be on the same page to minimize bad deals.  

Transactional funding definitely seems like a powerful tool for quick flips.

I mean, if I co-sign, then does it give me any power to sell one of his land there to recoup money and rest goes to him?

House hacking is a powerful strategy that can put you far ahead financially compared to those buying a primary residence or continuing to rent.

You will not have the existing power supply that I assumed.Still I like @Jill F. idea of installing mini-splits.