As previously indicated Cost Segregation is appropriate in certain situations, but certainly not all.

Maybe a better question is should I be aggressively increasing my contribution to max out my 401k contribution to the $19,500 limit which I am currently at about half that; and after that, with all the poor economic indicators and the disconnection of the stock market to the economy and high unemployment, when is it wise to take a cash position and how much?

Odor of feces throughout, but not a smell like sewage that indicates an issue with the property itself. 

By taking reservations for a property you do not intend to fulfill indicates you are not prepared for the STR hosting business. 

Our agent and seller showed us the tax and field card that indicated it was a three family home.

A Cap Rate is generally used as just another indicator of market sentiment on a particular property's income stream.

I've been given price indications of $250 to $400 / sq ft for 1200 sq ft ADU - West Los Angeles

If they're newer, many investors shop based on cap rate because they believe it's indicative of the rate of return.

In our experience, most of the states that we have loans & REOs in have gone back to normal operations for foreclosures & evictions.These are TX, TN, VA, NV, & WI.The exceptions are:California - courts have not started scheduling eviction hearings yet (at least in Sacramento County)Illinois - Cook County is not allowing the entry of any orders for foreclosure with no indication when they'll resume; Will County is not scheduling any Sheriff's Sales through the end of the year.New Jersey - some Sheriff's have canceled most sales through the end of the year.Louisiana - Terrebonne Parish has not resumed Sheriff's Sales yetAnyone else care to share info?

So basically, mental illness should not bar anyone from being a landlord but please take responsibility for your health and have someone else help you manage the business side of things, if indicated:)