I have to point out ethics and laws do not always match up in my opinion.

Business Ethics. 

If not, you might look for another agent who is understanding of the principle of a property paying for itself; one who also owns investment properties.I use the 1% rule before looking closer at a property, because my area fits this test: the monthly rents have to be 1% of the list price.

Once you start hearing some of the same things said over and over (ideas, terminology, principles, rules of thumb, etc.) you start to pick up on it right away.

As long as you have not negotiated a sale of a MH in the past 12 months you are fine. https://www.texasrealestate.com/members/legal-and-ethics/resources/legal-faq/manufactured-housing/

@Grant Dennis @Russell Brazil nailed it.In any negotiation, real estate related or not, it's critical to understand the interests and goals of each party.The seller's agent is required by law and by ethics to get the best possible deal for the seller. 

Wanted to know if there are any ethical issues or disclosure requirements we should be aware of.

Ask for a referral to a good and ethical electrician.

I recognized quickly that I couldn't continue to scale this thing by myself, so I brought in a partner who had the same vision and work ethic as me.

Currently I am using that extra money to quickly pay down on the principle for both.