This is a new venture for him so I'm not super surprised at the lack of feedback out there. 

With a income of 100K you should be back on your feet quickly, assuming you understand how to live a frugal lifestyle and be investing in less than 5 years.Pay off all your debts, save money by living a super frugal lifestyle and rebuild your credit.

Just like you, I leaned on BiggerPockets when I was starting out—super helpful!

I think this is what I was inadvertently concerned about (super newbie).

Yes that will be super helpful 

Luckily this was a super cheap property so I could afford the additional down payment.

But hearing your expertise is super helpful  as it's relevant to us here as we start our investment journey into MTRs.Have you had your place 90% rented most of the year, or have you experienced blips in vacancies?   

We always did better sticking to the K.I.S.S. methodReal estate has enough complexities and none of us are rich enough to need super-secret anonymity.  

I'm not super familiar with the commercial side of things, are there commercial appraisals that can be done on multi-unit properties?

Look at the price per square meter/foot, as many developers sell super small until to lower the $ price tag.