I also haven't read this entire thread, just the most recent, so I can't agree or disagree, all I have done is to express concerns due to the abuse of some gurus and novice players. 

The best resources for this question are going to be in regions where the ADU has been embraced as an innovative way to create more places for people to live: the Pacific Northwest, specifically Portland, are the key players here.California is not too far behind because the state has made it much easier to permit an ADU through laws, including the latest in early 2020.The basic answer to the question is a permitted ADU should add 20-30% to the value of your property.

The ONLY people you should hire are A players and Genius rockstars, no matter how small the job.

Strongbrook is a MLM type (think Amway) marketing program for the players who make money buying, rehabbing, and managing properties for people who invest their money with them.

We found it better to use our money to lend to flippers than actually do the flipping :)  then I found out of state lending and well the rest is history. . but I know most of the players either from lending them money or partnering with them..

good chance it was bought at tax sale @Wayne Brooks  IN CA  it usually 5 years before a title company will issue title policy for a one off buyer.. big player can get it though..

@Kyle Leveque there are already 3 players we know of in the Metro Detroit market offering flats fees - out of 95 PMC's were aware of (there are more).DM us for a conversation.

That's because I'm in a pretty rural market where people do have quite a few storage options on their own so I can't get as steep of a price, but it still works out well because the big market players like Pods and Pack Rat won't even deliver anywhere near my market. 

The communities of Bradley and Bourbonnais, in particular, are a growth area that were formerly ignored by the institutional players from Chicago but are beginning to take off. 

More units obviously means more work in the long run, but it also averages out costs and makes things overall a little easier.I think wholesaling is a good way to get started -- you'll definitely learn about contracts and working with the different players involved in the industry.