Let them know that the price might be kinda high, but you are willing to take a look at the house and give your opinion.By the time you see the house, you have done your homework and can offer them a firm price.Usually as I am talking with them, I am looking up the house on the county appraisers office, google maps, and realtor dot com to see what market prices are in the area.

Most firms don't give precisely defined turnaround or milestone dates. 

A quick Google search for the top commercial / multifamily brokerages for the type of property you're after will bring up lists of the top firms.

It's going to vary firm to firm and based on what's included.

This is for anyone who bounces on this thread and thinks paying 1/2 or a full month to a professional PM firm to place a tenant is too much.

What brokerage firm do you work with?

Flew out to local market, met Broker and Property Mgt firm, worked with them to identify the right project.

Now who will the selling agent likely help out - some agent from another firm or their buddy they just recommended over to you?

It took 6 months to negotiate all of that, mainly because of an unresponsive law firm representing an auto sales company. 

I've analyzed it every which way and have my numbers firm for the mortgage.