Before you go too far, you need to decide what would make this an attractive investment and how you'd monetize.

@Kate AndersonSTEP ONE:   Attend as many REI MeetUp groups and REI Association meetings as possible and become a relationship building machine.STEP TWO:  Study all you can on marketing and become a marketing machineSTEP THREE:  Find an active investor in one of the local groups who will take whatever deals you find and determine if it can be monetized. 

I'm figuring around $400/mo. net.

You cannot change the Earnest Monet amounts, the allowable time for closing or inspection periods. 

Professionals know to utilize others' to monetize profitably rather than waste time keeping it all. 100% of zero = $-0-

Since you're unsure how to proceed, you might want to consider partnering with another investor so you can monetize the deal before another investor does so. 

@Tajuana W.The first steps to success in a relationship intensive business like real estate investing is to educate yourself and build the team (partners) you need to monetize leads.

Purchased a turn key a few weeks back and leased yesterday to awesome tenants for $400/mo net cash flow (SFH).  

Example:  One of my Superior duplexes I have a 20 yr $62k note at 5% that brings in $1500/mo.  350/mo net positive.  8% vacancy, 8% PM +4% lease up costs, 12% maintenance and capx (yes I know they should be separate).  

I am also going to assume that whole deal with the landlord paying the WSG is either a typo of the same realtor that put up the Monet-like pictures, or that this situation will soon be remedied after buying the property.