Would you agree to this seller's addendum?

[Katherine S.]

My husband and I tried to purchase a 2/1 SFH earlier this week from a flipper. It is in move-in condition, could be put on the rental market the moment we close, ties up very little of our funds, and fits our performance parameters. A no-brainer. We put in a full-price offer, with only financing and inspection contingencies. The financing contingency was included only because I wasn't sure our lender would write a mortgage that small. We offered $5k EMD for a house that lists for $54,900 to show that we're serious.

The seller responded with the attached nine-page Addendum.  I'm interested in what the BP community thinks of this addendum.  I'm not an attorney, but it seemed really problematic to me.  

What problems and or concerns do you have with this?  

https://www.biggerpockets.com/files/user/Katherine...