Many investors do this and don’t see issues, but it’s best to proceed carefully and know there’s some risk.You don’t necessarily have to inform the lender, but it's wise to consult a real estate attorney or CPA to guide the process and minimize risk.

One guy that I chatted with in a Facebook group said that he didn't interfere with their process for the first 2 wks.

There is very little that is on us for the application process.

Public RecordsIn various stages of the foreclosure process, notices are recorded with the county clerk at your county recorder’s office.

I’m currently in the pre-approval process to purchase a 2-4 unit multi-family property.

The experience is working out pretty well.I think their goal is to be your one-stop-shop for the whole process and that will suit me going forward. 

Due to item 1, adding an ADU can require years to start achieving any return (once the accumulated cash flow recovers the initial negative position).4) Adding an ADU is a slow process.

Specifically, I'm curious about the cost and process involved.I'm considering upgrading to a 400-amp service, which I believe could be divided into two 125-amp panels, one 100-amp panel, and one 50-amp panel or some other combination.

How could it ever replace fiat currency if in an entire day it can't even handle the number of transactions Visa processes in an hour?  

Where you could buy the land, use the equity in your land for downpayment, or have land loan paid off during loan process.