In particular, engaging a firm to provide site plans and elevations (maybe even a rendering) from which you can procure bids and leveraging a design firm to act in the owner's best interest.

Key to this is your accounting and realization of revenue when services are rendered. 

How much would a cost segregation study be, so as to render the above savings not worth the cost?

@Corby Goade  as you noted this is totally market specific.in many markets housing for existing stock is still a magnitude less than what you can buy existing stock for rendering lots valueless.. think most bigger inner city hoody type areas of the mid west and rust belt and deep south.That all said the major difference is virtually EVERY HML does rehab loans..

Do you think the market will change and create demand for photorealistic, artistic renderings? 

Use a bunch of artist renderings and actual photos of the views and land along with pics of the lake, the ski resort etc.The biggest issue is that you will lose the early boost a new listing gets.

Failure to so qualify may render any purported conveyance or mortgage by the foreign LLC invalid.

For example, Thailand doesn't allow foreigners to own any land (they can buy condos, with the exception of the ground floor ones).While foreigners are equal under the law, it is possible that, in certain developing countries, a judge would favor a fellow citizen over a foreigner when rendering a judgement.

In the event of minor damage to any part of the Leased Premises,and if such damage does not render the Leased Premises unusable for Tenant’s purposes, Landlord shall promptly repair such damage at the cost of the Landlord.

If I am providing a Kitchen Design with 3D Renderings then is by the job and page.