He has personality traits that annoy me, but nobody gets along perfectly with another person 100% of the time, and overall it works better than anything I've ever done with other people.You need to know your quirks, his quirks, and lay out exactly what is what up front.

You exterior photos and update with new interior photos as you progress.Offer an open house for 1 or 2 hours per week to allow people to see the lay out!

Is there a general layout that I can download or purchase or is this something I need a lawyer to draw up for me?

Yes, I know it's too big for one single guy and a dog, but it was the only layout (new construction* house) that had a downstairs bedroom (for when mom comes to visit from NY), a decent yard for my dog and a place to build my gym. 

You can lay out details in operating agreement.

I plan on opening the layout and adding a master bath as well.

Upgrades include a remodeled kitchen with newly installed cabinets and countertops, new premium stainless steel appliances, vinyl windows, remodeled bathrooms, new flooring throughout, elegant entry door, and a stacked-stone fireplace that ties in perfectly to the comfortable layout of this home.

Upgrades include a remodeled kitchen with newly installed cabinets and countertops, new premium stainless steel appliances, vinyl windows, remodeled bathrooms, new flooring throughout, elegant entry door, and a stacked-stone fireplace that ties in perfectly to the comfortable layout of this home.

The layout isn’t great and the neighborhood still has its quirks (drug dealing, theft, airliners flying right overhead).

Yet that street looks a bit shoddy and the house layout is just odd, can't seem to identify the property lines either.I'd like to keep the address private for now but will definitely post it once its over.