What are the simplest ways to structure the partnership?

Insurance by it's simplest definition is a "transfer of risk".

It's a two page lease in the simplest language possible so it really doesn't mention much of anything.

There are many ingredients to make a multifamily purchase a good one. 

@Callum SinclairThis is a month-old post, so I'm probably late.The simplest and most effective setup is usually to keep the whole business under your name or an LLC that is 100% owned by you, and set up your family members as lenders, as opposed to partners.If funding the deal makes it impossible, due say to your credit, then you can reverse: have your dad own the property under his name or his LLC, and set yourself up as a contractor for him.Bottom line: it is case by case.

Simply doing loans and paying interest is the simplest way.

Just hire a home inspector/contractor to look at them would be the simplest solution.

@Dustin AwtreyI think @Michael Plaks and Account Closed gave you the easiest, simplest, most tax expedient, best way to do it. 

The simplest answer?

The worst they can say is no (or nothing), at which point you can always go up.I learned my offer strategy from Emeril (BAM)...start by putting less of one ingredient than you think you'll need into a bowl of ingredients...you can always add more, but you can never take out what you've already put in.