What are the best strategies you’ve used to minimize this risk and keep projects on track? 

Hopefully the security deposit is enough to minimize your loss.

You can use the 1031 to sell a larger unit that provides better cash flow while minimizing active management.You can either try to cluster those sales together so they close in a way that lets your replacement property be listed on each 45 day period and you close on it within 180 days of the first sale (the first exchange that will expire).Or you could do something like a reverse exchange where your Qi purchases the new property and holds it for you for up to 180 days while you sell all of your properties. 

This is because I only buy nice properties which helps minimize my future repairs.

Honestly, purchasing courses might not be necessary since most of the information you're seeking—like drafting a strategy, understanding CRE, and building a team—is readily available online for free or at minimal cost.

I am surprised these lending institutions don't regularly run algorithms showing which loans have been assumed Seems like an relatively easy thing to do to regulate and in a way minimize risk - maybe have more defaults but still maximize their loans by forcing compliance 

What are the best strategies you’ve used to minimize this risk and keep projects on track? 

Also have 2 CA properties seeking to minimize taxation.

Valuing a YouTube channel with 5,000 subs and minimal viewership at $200,000 is pure nonsense.

One hill I will die on is optimizing for minimal assembly.