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

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).

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

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. 

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

There are definitely pros and cons to each so I figured I would just lay out a few benefits and personal thoughts: Small banks/brokerages:Pros:- Some regional knowledge of the market- Possibility of more creative lending guidelines with bank specific programs- Sometimes they have competitive rates for their areaCons: - weak balance sheet (more strict on some guidelines, no wiggle room, inability to be flexible or grant exceptions because they cannot afford to hold less than perfect loans)- Can't scale with clients to different markets- Usually limits exposure to individual investors (they don't want one investor to be too big of a portion of their balance sheet)- Lack of experience with multiple solutions (tend to have 2 or 3 loan products they sell and are too niche to provide tailored solutions)Large banks/brokerages:Pros:- Large compliance departments that understand individual market guidelines (typically each state has specific lending guidelines that augment the national baseline)- Ability to scale into multiple markets with same lender (licensed in many states)- Impossible for individual investors to "outgrow" a large bank's balance sheet (not concerned with one investor's concentration)- More lending solutions available for different scenarios- Often comparable or better rates given the game is volume basedCons:- Can be more difficult to get fast responses if the bank/brokerage does not have good follow up systems in place (or if the underwriting/processing staff gets overwhelmed)- Bad large banks can feel less like a relationship and more like a cog in a factory (less personal)Overall, I have worked from both and worked with both as a loan officer, branch manager, and as an investor/client myself. 

I have been looking at CRM's like Hubspot and Odoo and I tend to get a little overwhelmed because their tutorials all seemed to be geared towards those that have multiple people working on the CRM and all of this automation when all I want is a simple database.

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.