Will the renting of ADU rise to the level of trade or business? 

Is it single level?

The negative equity often exceeds $50k but even if I use $25k (it would be rare to have this low of an initial negative equity position), is nearly 2.5 years to recover.  

This is what unsophisticated investors think who have a surface level of understanding of these deals.

Personally knowing the founder of BP, Josh Dorkin and the current CEO, Scott Trench, I can tell you that their intent in starting and growing the bigger pockets community is to encourage investors of all experience levels to share their experience and network with like minded individuals. 

Its interesting which countries have low birth rates and which countries do not. 

Quote from @Mitchell Coles: In Ohio, property liens are typically recorded at the county level, making the County Recorder's Office a valuable resource for property research.

The term “Mission Driven” is internal Freddie Mac & Fannie Mae terminology that defines whether or not a unit is rented at a “naturally affordable” level.

For automation we also use make.com, zapier as well as go high level as a CRM to name a few

I would tell people today that if you buy a primary residence expect to stay in that home for atleast five years, especially with a FHA loan which has lower down payment as the current forecasts for home appreciation or very low which with closing costs on the buy and sell, it will take several years to have equity in the property and enough to be able to sell, so that is something also to consider.