I would advise you to strike (take out) anything you don't want, like the assignment clause and add the additional provisions, your outs, BEFORE signing.I would be very careful with whomever you are dealing with...Hope this helps!!

After meeting with him and expressing his desire for privacy/discretion in sharing information he strikes me as the "millionaire next door" type - lives in a modest neighborhood, drives a modest car, does not want to be flashy, show off his wealth etc.We've had the chance to meet for 2.5 hours so far.He's in his 60's best I could tell - ready to retire.  

I don't and yes, perhaps I am wrong, bit I have seen a little of this before, and parts of it look strikingly familiar. 

@Monika Haebich I have 3 properties striking distance from downtown.

Strike one. 

Been involved with Seattle real estate through my family for years, but as I strike out on my own, I don't yet have the resources to invest him my home town, prices have gotten a little steep for young investors.I'm currently looking into picking up a small multi-family building as my first investment in the Puget Sound region.

I used to live in Washington State and I successfully rented my house up there for several years, and I was hoping lightning would strike twice.

Why would I waste my time striking out on 90% of offers? 

Had some lean times when I was a kid when they were forced to strike.

I'm sure no one works on a plan for a meteor striking the earth and wiping out all of humanity, but it's reasonable enough to want to know what would happen if there's another housing crash like we had in 2008.