Again, the BiggerPockets store has some books on this topic, or you can learn about it by watching podcasts, reading blogs, and interacting on the forum.

I'm looking for advice on how to do this. anyone with experience on this topic?

I'd suggest looking for local FB groups (search Ann Arbor real estate and/or related keyworkds) or even Meetup.com is a great networking site for related topics. 

also books on this topic? 

Work with your Solo 401(k) provider and they should be able to assist you with properly approaching your banker so as to get results.Alternately, you can choose to work with a bank that already has trained staff on this topic such as Solera or Titan.

Good topic!

I did a BP blog on this topic. https://www.biggerpockets.com/...

I mentioned some ideas we have here: https://www.biggerpockets.com/forums/311/topics/1200791-what... 

When I talk to the investors that I work with, considering new construction is one of the first topics.  

Per this NY Times article, the average American knows around 600 people.https://www.nytimes.com/2013/02/19/science/the-average-american-knows-how-many-people.html#:~:text=The%20average%20American%20knows%20about,do%20you%20know%20named%20Kevin%3FPer the US Census Bureau, the average American moves 11.7 time in their life, which based upon an approximate lifespan of 84 years, works out to be about every 7 years.https://www.census.gov/topics/population/migration/guidance/calculating-migration-expectancy.html#:~:text=Using%202007%20ACS%20data%2C%20it,one%20move%20per%20single%20yearSo, if the average American knows 600 people and they each move about every 7 years, that means that the average American knows around 85 people that move in any given year.How many of those moves do you want to be involved in?