He probably means to say “detrimental reliance” but is using his own, non-legal term.

The 3 biggest components of your closing costs are you insurances... title insurance which is usually around $1200, and then your homeowners and flood insurance.

Many MH investors separate their investments into two components A) the real estate and B) the wheel estate. 

Foreclosures will be detrimental to them rebuilding to buy or event rent a home in the future.

Your team is almost everything with YOU being a large asset or detriment to that team.One of my biggest mistakes made (of course hind sight is 20/20) was not keeping more rentals while flipping so if you turn out successful flips, don’t stop your buy and hold, increase it with your flip profits.

The detriment to borrowing in one's personal name is that it negatively effects the DTI for the next personal loan approval until the investment property is rented.

Yes, you will need to ensure that you allow for a Roth component when you complete the 401(k) adoption agreement. 

The biggest lesson that I learned was learning the lingo and what step there are to take, the components of the deal.

It’s also not detrimental.

@John Sherwood if you want to be really scientific, then break down every component of the building into its useful life.