The title attorney involved had open communication with all parties on this and an addendum was added to the contract stating this.   

Simply look at any large apartment building.

If there is a specific document you would like to see added next please comment in this thread so I can get it added to the list!

Below that is a parlor floor, which has the highest ceiling in the building and this floor is connected to the ground floor via an interior staircase which we added doors to both ends to break up the lower duplex into two separate living areas.  

- Question for investors: What can a developer, with less experience w/large scale deals, do to bring value to a more experienced developer?

Luckily, due to the number of items this person had at the home, we added charges for each day beyond the set closing date for them to vacate the property.

I cut off PMs that constantly try to find ways to add revenues by what I call trickery; selling some 3rd party service that they have contracted to all their clients, recommending small fixes turn into large one's,etc, make it difficult to get 2nd opinions. 

100% agree with @Collin Hays - find a local manager, preferably one not too large or not too small, I would say 30-90 properties is usually a sweet spot.

First of all, I suggest you search the forums as arbitrage has been discussed ad nauseam.

I plan to leave them enough that they can afford to buy a house or start a nest egg, but I am not leaving large sums to them.