I was going to offer to have the testing done but tell the tenant that if the results show no harmful mold, the cost would come out of her security deposit.

I attended the live webinar (which is very good) the County offers, but I wanted a real-world perspective.

What can you offer in return?

I usually just look up the real owner in public records, skip-trace their contact info, let them know someone is trying to use their land for a scam and offer to put a sign up at the property that says "NOT FOR SALE" (ironic for a real estate agent right?).

There will be a rise of flat fee brokerages (offering limited services) and creative compensation arrangements, such as RE consultants for time or a specific transaction.

Adam,Just to clarify I think your post was good to establish the changes coming and it does help to offer insight. 

NAR has offered to settle.

Make an offer based on you terms!

Here are some favorites among real estate investors:"Set for Life: Dominate Life, Money, and the American Dream" by Scott Trench: While not solely focused on house hacking, this book offers practical advice on building wealth through real estate investing, including house hacking strategies."

Networking through local real estate investment groups or online forums can help you connect with experienced folks who can offer guidance, but also do your own research on the way.