Late payments do not bother me at all as long as they paid all their bills.

I am wondering who has done the BRRRR method as an investor and what institutions are investor friends for multiple BRRRS.

The other half of the accounting records is coming from online purchases, utility payments, etc etc where they are sending you an email. 

I know most of your comment aim at people who probably start with 20K and bring small properties. we are planing on investing 250k to 500k as a 25% down payment a year, hence the question.

Focus on building strong business credit through timely payments, low debt levels, and solid financial records, which carry more weight than the name alone in establishing creditworthiness.This post does not create a CPA-Client relationship.

However, I’m wondering if I need to engage an Attorney a borrower has missed a payment and it’s time to send a Notice of Default.Must the Notice of Default (NoD) be a letter sent certified mail or would an email sent to the borrower notifying them of non-payment be considered sufficient as a Notice of Default.

Cash flowing in the type of market we have is extremely difficult, especially with such a small down payment. 

That's what house hacking is - getting roommates to pay as much of your mortgage payment as possible. 

Throw in the fact that properties over the next few years most likely will have very low to zero appreciation and they probably do not get you a net of $6k a month even if you considered the principal payments you are paying down and lending right now is a far better situation to be in than owning property - just as the opposite was several years ago during very low rates and high home appreciation. 

Some strategies and asset classes are better in different market conditions - but difficult times doesn't mean you have to abandon an entire method of investing!