As far as being at the property to inspect the work, as a private lender you can do that without having any liability of being considered a partner However if you start picking up color of the tiles or choosing the colors for the house that maybe construed that you are a partner in the deal (long shot but possible ). 

The color of the siding is the typical white color. 

When we post notices on doors (or elsewhere), we use colored "frog" tape.

Light colors and finishes have been shown to hold their value along with simple hardware and fixtures that are not overly trendy.

Great point about the views, especially the fall colors this time of year.

I'm wondering how much would be  reasonable to pay  someone on the next job  for picking out flooring cabinets  and all of the Interior items  including paint colors excetera .  

(check comps, expectations for area first, i'm up north snow area....)bathrooms, get rid of anything gold. chrome/brushed steel/nickel... maybe modern but you want serene/calm/spa. choose paint color wise.kitchen: there seems to be a mix of black can painted plastic and metal pulls. how are the cabinets?

The only colors I ever spend for is the semi gloss trim and the ceilings white.  

- A gallon of paint can be had for just a few bucks... even premium paints (just ask to see the ones that were mixed/colored wrong).  

She puts out folded white towels to give it a spa feel, a pop of color with (fake) flowers in a vase, a big beautiful bar of soap to act as a diffuser and add to the spa feel, etc.