The problem (as you have cited) is trying to understand what you need (you don't know what you don't know), where to get it, qualifying its source(s), and the validity and usefulness of all that.Pardon me if I've gone into this too much, but I meet many people with the same concerns that you are voicing and this is offered, as much as possible in direct response to your post.Please feel free to contact me if you have any comments or questions. 

What I take some issue with is the techniques that guru's use to up sell and so on .. and they do nothing to qualify if the person paying them if the program does not work they are now into debt to the eyeballs and so on but then again who are we to say at some point.. think of  Hewlet and Packard they went into 15k worth of debt to start HP in late 40s or early 50s and that was a ton of money then :)

They were not terrible, some people would call them C minus, and it wasn't even that much about financial considerations at the time (appreciation was not a thing back then in Milwaukee) but just not what I wanted to own or manage, so I sold them to them tenants - after quite a bit of financial coaching to get them to qualify for a loan.My standard advice is always to buy the best quality property you can afford.

Finding something on Zillow and taking a swing just doesn't work unless you can pay cash for a property that does not qualify for conventional financing. 

The building was vacant as we are remodeling the first floor and had just finished painting the 2nd and 3rd floors and were in the process of qualifying tenants to move in the following week. 

I sent an invite to a prospective applicant that qualified and Looked high and low for the invite form with some additional notes to the applicant only to find out that it is not even on the platform at all, anywhere but in an email confirmation I received.

DSCR loans let you qualify based on the rental income of the property rather than traditional income verification.

The buyer is qualifying for the loan just as if he were the originator of the loan.

Going to depend much more on more details / your personal situation - all things equal you will probably get better rate/terms on conventional if you qualify for both

@Kezia Edmonson Yes, you can use a 1031 exchange to defer taxes on the sale of your single-family investment property when purchasing a multifamily property, but only the portion used as investment (the three rented units) qualifies.