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

Business Ethics. 

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.

However if you practice ethically, the obligated fiduciary responsibilities differentiates you from the mountain of wholesalers that may be looking to make a quick buck.The demand for wholesalers has risen due the investors' need for quality deals and their inability to get boots on the ground to find them.

Is it ethical?

These are professionals with additional training and a stricter code of ethics.