Correct Order of Operations When Submitting an Offer

Yet another good call with a business broker to acquire an HVAC company. I did not hear anything which was a "No" to me, and when I asked what the next steps are, I am told the next step is to submit an offer. No tax returns, just seller provided "PnLs," no call with the seller, first step is to submit an offer. The last time I did so did not work out well for me and tied up my 1% EMD for a month. To only get booted off the deal later.

How is this supposed to work?

In my opinion:
1. Initial call with Broker
2. Tax returns provided, NOT an internal company provided financial statement LOL
3. Phone call with seller to see if I even like the guy/gal
4. Submit a solid offer I actually mean vs one which I was pressured into by a Broker

It just seems like the seller would get upset when I point out that their supplied PnL's don't match what is on their tax returns, and that is what my lender is going to work off of....