The lender had forced place insurance on it, wouldn't add us to the policy, and threatened to accelerate the loan on which they were accepting our payments.

If the seller does not counter or accept my offer before the deadline then I am out.Then what if he comes back later after the listing date with an offer to reconsider my original offer.

Then I would come back to BP and post it (Financials) and ask/accept feedback. 

That process was relatively simple, it was a HUD home with the bank asking for 130,000 so we simply offered $125,000 and they accepted.

I have made it clear that if I can’t get the minimum I would accept for the property, within 90 days on the market, I would just want to rent it out again.

I will have a property under contract soon(seller countered and we will most likely accept the counter) and now there is this massive pressure to find a hire a great GC. 

Inspection Period after accepted offer?

Obviously you have done the underwriting, vetting, analyzing of well... everything (i.e. economic outlook, demographics, local contractors costs, local taxes, etc.) and established value, made an offer, accepted and closed.

(I would probably try to stretch the balloon to 7 years and the interest rate to 5% and see if you can settle on 6 year balloon at 5.5%)No one is going to accept a 1 or 2 year moratorium.

Assessing the risk with respect to your goals will impact which asset class and returns you determine are acceptable.