What is considered a low ball offer and what would be considered a good offer.

What is considered a low ball offer and what would be considered a good offer.

I would suggest you go in with your highest and best with contingencies.. if you think of low balling an offer in our neighborhoods, you'll likely get outbid by someone like me with cash and no contingencies...

I submitted a low ball owner occupied bid to get the counter.

How would I determine a starting point or ball park. 

If 'main street' here means 'busy street', any retail buyer (if they planned on living in the property) often will use the 'busy street' as a factor to justify any 'low ball' offer -- that's if they make an offer at all. 

The coverage was terrible and I wouldnt use again.Scope of work:Exterior:-Reconnect two downspouts -Re-attached loose gutter to roof facia board-Demo broken concrete steps in front of house-Re-key 2 doorsUtilities:-Pex water supply replacing throughout -1/4 turn ball valve supply shut off valves throughout-Replace water faucet braided hose supply linesMain living areas:-Replace 5'x10' window in first floor-Patch a handful of plaster holes-Replace 2 pocket door faulty hardware-Replace screens on french doors-Remove carpet in 6 rooms-Patch hardwood floors (about 5 patch jobs)-Re-finish hardwood floors-Lay ~1200sqft vinyl tiles in entry way, downstairs Bath, hallway, kitchen, living room -Remove/replace ceiling tiles in living room with drywall.

And, as @Ben Leybovich (BP royalty, btw) mentioned, with your construction experience you should be able to at least ball-park the rehab costs.  

As long as she exercises per the terms of the agreement, you're going to get what you agreed to.

We are overdue for an earthquake, but no one has a crystal ball and were talking year spans we can't really comprehend for our lifetimes.