Others is buying dirt from the farmer platting it doing all the horizontal work then building structures . full gambit .. 

It's all about knowing your structures, how to adapt them for maximizing ROI.  

If you want to get around this simply require ALL credit reports be given to you for the purpose of supervision of your agent to prevent discrimination against protected classes under the Fair Housing Act.I would not pay any lawyer a dime if they could not prove this appropriate business purpose.Does the person that wrote the following sentence practice out of form book?"

A few examples are 10x20 $40 ($55 market), 10x24 $40 ($60 market) 16x20 $50 (Market $110, I would move to $75 to start) Our suggestion is an interesting way to structure the deal.

When these are defined you will have a better idea of where the structures and other utilities can be located to serve the community. 

On the flip side having 2 residences in one building does bring efficiencies from a management/ownership standpoint.Finally, the payment structure you mentioned (30-40% until project completion) is fairly standard for pre-construction properties.

From a bookkeeping standpoint, this makes everything a lot easier as long as each financial account is used the way it is supposed to be used (no commingling).I would just caution you to think about the functionality of that structure within your day-to-day business operations before pulling the trigger on it.Make sure you're keeping things as simple and efficient as possible.

With a $500k investment you could probably easily grow to a $1.65M, 6 units portfolio, with cash flow in excess of $2,500/mo, all while reducing your structure count from 6 to 2.

Electric Meters: I doubt the even if the ADU is a separate structure they have a separate electric meter as they were mainly used for guests.

3 of my faves when I was active for entity structure,  contracts and landlord-tenant have retired but Ryan Feeney of Overcast Law was very good with landlord-tenant matters.