It is required by the law and the Code of Ethics.2) There is no such thing as not going through your brokerage when you have a license.

If so what are his loan requirements?

You'll have to meet higher ratio and FICO requirements. 

A DSCR loan is going to require more down, have high fees at closing, a higher interest rate, a pre-payment penalty, and will require you to have cash reserves that you likely don't have at the moment.

@Sung Yu You can 1031 exchange your fourplex into a single-family home, provided it’s initially used as an investment property (rented for 1–2 years) to meet IRS requirements.

Yes, I share the same feelings and dont understand why the information and steps required is SO extensive! 

I'm not sure if they still have the 2 year requirement on income if it's going to be your primary residence.

No personal income or tax returns are required.

Lenders will lend the lower of the amount between LTC and LTV.Do you require an appraisal and survey?

You'll want to read Maryland new requirements for landlords.https://dhcd.maryland.gov/TurningTheKey/Documents/HB693-Land...