For a SFR, you are  using a variety of data sources to get the comps for an area (such as market price per sqft) but with a multifamily, you are not necessarily looking at price per sqft  or "like" properties per se, rather you initially have to determine the rental price & cash flow per unit from which you can then work backwards to ascertain or derive value.Also, unless you have a property under contract, the opposite of attention is what you are typically looking for in regards any deal so you may want to learn as much about ARVs as you can -- fast!

But you’ll find a variety of every type of investor on the site, and everyone is amazingly helpful.

It's a great opportunity to get familiar with a variety of things and develop an ability to look at a problem and have a good idea of what needs to be done.So going forward do you think you'll be doing them yourself?

I currently have four doors that I have bought with a variety of methods, BRRR, hard money, seller financing, construction loan.

@Shin Bo it's definitely viable in a variety of contexts.

As an "Arbitrager" myself, I see a variety of problems that could come up for the building owners and staff, but hey, they didn't ask me before launching! 

BiggerPockets has a variety of great books for different types of involvement in real estate.

I've taken some basic classes in a variety of things just aimed at homeowners doing some repairs and home projects (electrical, plumbing, drywall, woodworking classes), and I've long been interested in potentially finding some work / gig work as a construction helper or the like.

(I am not an attorney, but I do expert witness work FOR attorneys on a variety of mold-related issues.)Often times, I tell folks to take photos of how bad it was in the beginning, how it looked when it was all cleaned up, and then how the finished product (rebuilt area) looks today.  

@Joe Kooner When I say “refine goals”, I mean things like variety of industries in a market, employment drivers, city size, etc.