But again, no experience with wholesaling, this is just what my common sense tells me. 

In a normal negotiation it is common for splitting the difference back and fourth. 

Again, I point back to the comment above; this is common practice in the travel industry, and it's Airbnb/VRBO who gets to call the shots on their platform. 

Multis / rentals are not common, and in demand.

Multis / rentals are not common, and in demand.

Owner financing is not common form what I understand. 

But even less fatalistically, 1% variance within a year period looks pretty common.

I sent the assessors and city council a piece of my mind but lesson learned my friend it is more common that I thought that places double your taxes if a multifamily is not owner occupied.  

What about common area utilities since you are looking at multi-families?

@Shaun Marks  First Congrats , since you wish to payoff the the new HELOC I believe you will have no issue with a common  six-month title-seasoning wait period.