If you’ve never owned a rental before, I’d highly, highly, highly advise staring out much smaller than 13 million and 100 units, and frankly unless you have 13 million in cash no bank is going to lend someone with no experience 13 million dollars, I’d start with multi family in one of three places, a class Baltimore, canton, fells, Fed hill etc, Frederick or the eastern shore of Md all of those markets are somewhat affordable have good tenant mixes and a relatively safe, see how it goes, if you like it, than buy another 2-4 unit, than another maybe once you have 8-10 units if you still like it, still are making money than go for something bigger.

There are plenty of single people and young couples that want a one bed to save money and work in the suburbs.  

Phenomenal CoC returns, recycle your money, ability to scale, etc. 

Pick deals based on how much money they'll bring in, where they are, and how many people want to rent there.

You are paying money thinking it will bring you business, when in reality it's just bringing you a bunch of contacts that aren't serious.Build relationships.

Depending on other factors (credit score, property location, etc) you can look into the hard money route.

Some of the guru's talk and talk about no money down, yadda yadda, but that's just not the norm from what I've seen. 

Theres two concerns here, time and money. 

I have seen money pass and wasted that could have been growing right now.

Since I am 19 I don't have tons of money to just go and buy a property to invest into.