Meetup.com is a good resource for those but some of the groups will also post here on Bigger Pockets Marketplace too.

How did you evaluate the returns (ARV) of an agent pulling comps or through your online resources?

I have been offered 32 unit Mini Storage. 

The resources are out there, but if you want to do some more digging, you could skip trace addresses to get the owners or whoever is attached to the property's phone numbers.

Realtors are a great resource what a property can possibly be worth based on sold comparable 

They are currently offering 14% up to 20% on a particular project they are working on. 

I would love to be able to hand wash my own car at a self-service car wash.I did find these resources for you to check out regarding repurposing car wash bays:Alternative Uses for SS Car Wash Building | Car Wash ForumA creative adaptive reuse for a former eastside car wash | Anderson Management Company (amcwichita.com)9 Ideas to Transform an Old Car Wash Bay (superiorcarwashsupply.com)I hope these are helpful!

You can make whatever offer you want to make based on your math and MAO, but don't lie them by falsely claiming that their property is worth less than X dollars in a market.

Still haven't made up my mind but here is what I can offer. 

My market is a few hours from the bay area and offers many advantages over CA.