He will frequently frame things in terms of a trade off.

The seller needed to sell quickly due to personal reasons, which allowed us to negotiate favorable terms.

Both units are rented as short and medium term rentals.

Be very careful of these fake on line lenders.. its a huge scam these days.. while 100% exists in the market place its only for well established long term repeat clients.

Make sure it explicitly explains the process for termination if you are unhappy with their services, especially if they violate the terms of your agreement.3.

My guess would be that as this GP is doing 1031 as a TIC into the deal he would be a little less likely to want a sale, which is a taxable capital event, and would like to keep his money invested and sheltered from taxation as long as possible which tends to fit with my investing style of long term/preferably forever investing.        

Usually its better to have multiple applications to compare, especially for the sake of trying to select a "long-term tenant." 

Your mentor has needs; try to meet them and develop a mutually beneficial relationship.A mentor can benefit your growth, but it's not as simple as one post on a forum full of strangers.

We've actually done a few this size as all single asset loans for clients who wanted a full 30 year term. 

If you want amazing appreciation for the long term benefits, the Coast is a solid option.