From my online research the prices are too high and pretty much a not so ethical way off doing business.

My assumptions based off research is I will be able to deduct 1/2 of all allowable expenses based off the ADU square footage (My understanding of that list below)  1/2 Mortgage Interest (Not principle) 1/2 Utilities 1/2 Property Taxes 1/2 Insurance (assuming I don't have separate ADU insurance)  1/2 general house maintenance (depending on the issue and if it's related to the ADU)  1/2 Depreciation (Home value, not land divided by 27.5)  KEY QUESTION: If my mortgage (PITI) is $5400, and all of those ADU deductions equal $3800 monthly, and my ADU income is $1800 monthly, am I allowed to pay the difference in "deductions" from my real estate business income? 

It is more time consuming if you are managing it all yourself.You didn't list selling a property as an option to pay down loan principle.

@Sharon Patterson, any rehab is a "project" and basic project management principles state that there are 3 key interrelated aspects to all projects: time, scope, and cost.

It has slowly groomed my work ethic and I am still always learning.

Again a real reduction in tax over the same profit.How about the principle repayment paid for by your tenants. 

If the later is the case, unless your contract with that buyer had specific performance language in it, there is nothing you can do.As to the advice above about potentially clouding title, you are now entering the legal realm and you should NOT be taking legal advice from anyone other than your attorney as clouding title in THIS case can swing back at you from the original sellers for not performing and claiming damages against you.If you intend to wholesale, you need to do it legally and ethically and in many states, that requires either a license, closing on it with your funds or borrowed funds, then marketing for resale once you have title, or having your buyer upfront, forming a legal entity with both you and buyer as owners.

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

According to the National Association of Realtors' Code of Ethics, realtors must avoid concealment of pertinent facts and should not misrepresent the condition of the property.

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