The admins/moderators could set it up and then lock it to preserve the content.My $0.02

Need to think outside the box nothing's necessarily set in stone, more flexibility.

If income/expense numbers given to you were inaccurate, then I would lower my price to adjust accordingly to the cap rate you agreed upon the incorrect numbers.No deal is better than a bad deal, and losing a few thousand dollars is worth it not to get into a bad deal.The broker can put any description he wants, but he should not be passing over incorrect income & expense numbers.Go back and lower your price accordingly or else walk away.  

They set the pace.

You should talk to an attorney and accountant to find out the best way to set up your business.

You probably already know this but it might be worth the time to set up an account with your local building materials supplier (Not lowes or HD) those folks always have their ear to the ground and can often recommenced better options. 

Appointment set yesterday with very motivated seller, husband recently passed, moving out of state, she owed nothing.

If your contract says 14 days, there is a set date...

Plenty of folks on here would be happy to submit an offer for you and set you up with an MLS feed that matches your criteria.

Once you have your criteria set and know what you're expecting, it should be easier to have conversations with agents and get started.