The deeper you get into this the more opportunity you're going to have to increase expenses because of the unknown.

You might have to evict the people living there and there could be a lot of unknown damage.

ASK your contractor there opinions of where there might be some unknowns in the project.  

If present, take them out...unless of course you like unclogging corn cobs, beef/chicken bones, potato peelings, grease and a fair number of unknown but really smelly other objects from them and your kitchen drains.2.

Yes the unknown is always a concern but trying to include all these systems in the overall price and worst case scenario. 

Hey all, so kind of a strange question, but:What’s the best contract template to use to have a family member “trust loan” me money with an unknown return and returning their principle (and profits) in a set amount of years?

A lot more unknown, that is why I am coming to that conclusion.

I am running into some unknowns. 

And I have to agree starting I think will be the hardest part, a lot of fear of the unknown, but hopefully after the first deal it will progress into something great.

. $10k over budget for unknown dryrot and open up walls.