Perhaps you could have your Dad invest in a flip of a tiny home or condo and test the market that way.

An appraisal is not a statistical analysis, it is an analysis with parameters set by guidelines, there is no "testing"required at the individual appraisal level.

Unfortunately, the registration system wasn’t quite finished, and we didn’t feel comfortable launching it before having a chance to test it internally.

There are many sellers right now testing the waters with prices that typically don't make sense with today's rates.That being said, there is also a psychology behind pricing properties to create true interest and demand.  

Based on previous Expedia Group testing, this new feature helps drive higher conversion and click through rates on listings."

Contractors and dealers were so upset with us when we showed up with the new machine and asked them if they wanted to test drive it.

Be sure you stress test your portfolio.

Most don't write me off, but I'd be lying if I said I am anywhere as sophisticated as an experienced real estate agent so most put me to the test. 

Your true test will be how well can you handle the day to day as well as the major operational requirements of the arbitrage business as you scale.

It was very vague/general request, in which I gave her the okay to purchase test kits online and do her own test.