Lots of swamp land for sale...so know what you are buying and know what your exit strategy is. 

First off, congrats on saving $50k and landing a great postgrad job—that’s an impressive start!

Your story resonates with me and my partners, as we too ventured into Detroit's real estate market, albeit on a larger scale, and have faced some significant challenges.In the early days of COVID-19, my partners and I invested in land in Detroit's vibrant Corktown neighborhood with the intention of building 42 townhouses and a 72-unit rental building.

DM a few local landlords to ask them 

This is what I am encountering, in the current Mortgage Industry.If you think you will go FHA, Conventional, FHA 203k, etc. and then Quit Claim the property, to a LLC, or a Land Trust you run the risk of the lender discovering a Title Transfer occurred and activating the "Acceleration Clause" or "Due on Sale Clause" that requires the loan to be paid in full, within 'x' number of days.

I am about to pay the land cash 500K, then build 10 apartments for roughly 1.5M.

Quote from @Matt McNabb: I'm a solid $400k/yr job in NYC and have $250k to begin investing as my first step into building a portfolio, although I don't have time to be a landlord so I have to account for management fees.  

I'm amazed and delighted daily by Lady Landlords FB page and highly recommend joining at least 2 Landlord FB pages as well as these here in BiggerPockets.

I landed on the numbers I did because that makes it cash flow nicely for the buyer in addition to meeting my goals. 

I went through the tenant/landlord handbook a little while back, but I don't recall it specifically addressing that.