I too started with residential single family. there was only so much i could learn from a book, and getting one house definitely allowed me to at least have a "practice run".Plus, with some of the serious hiccups we have encountered over the two years since we bought that one (and others), I would not have made it through if I was banking on my paycheck to cover the repairs on a larger building.

@Daniel 50k in remediation expenses on a deal worth 1.4 million seems like a pretty minute hiccup on that deal I can't imagine the profit margin on that deal would be slim enough to collapse a deal over 50k... but I understand what your saying for sure and is a very valuable point. 

With such a custodian, they are the processing layer and document and fund your investment transactions - much like TD does in the stock market.You can have what is referred to as checkbook control either with an IRA owned LLC setup by an advisory firm alongside the custodian managed IRA, or with a Solo 401k plan if you qualify.  

I've been working alongside my father for a few years.

You should consider getting your credit up withing about 6 months so you can qualify for traditional financing (If that is your only hiccup).

Great point @Jonathan Towell personal goals wise, build a passive stream of income alongside my active income. 248 doors!

I have a refi loan with a VERY strong borrower, VERY strong income-producing business, low LTV on the loan but it has one hiccup.

Excited to learn alongside you!

One possible hiccup to your desire to get a bargain is that 4-plexes are also sought after by owner-occupiers, who only need 3.5% down!

I've worked alongside my dad as he helped other investors and real estate professionals flip homes and prepare rentals.