My best deal was purchasing a Freddie Mac REO 4 unit + garage apartment building and small storage building 22 to 24 units, depending on how one counts it for $131k.It was trashed, rented to druggies who recycled everything they could. 

In my case, I could have deferred about $57K in Capital Gains taxes, but in the end, it was way more important to purchase the right property (or properties) at the right time in the RE cycle.  

Accounting would be good if you're a numbers guy and can afford the cocaine you need to get yourself through it :) jk.Even if you get your degree in a totally unrelated field to RE, you can STILL be a success in investing, and that's by using your ability to recycle all your profits back into your investing.

BRRR allows me to recycle the funds.

Other than that we keep recycling what works. 

Recycled that money through them with financing and bought our last 18 in the same amount of time it took us to buy our first three.

They take up tremendous amounts of parking and fill my trash, recycling and yard waste containers with stacks of pizza boxes.

Expanded by saving a lot of money by house hacking, getting some great partners, raising money for deals, and then moving from a 50k a year job to a commission only job (Realtor)I'd say I'm Financially Independent at the moment, but we don't collect the cash flow and just recycle it back into the business. 

Sure, the listings will say they are new listings, but they are just recycled listings where the deal fell through or nobody bought.

I like mailing Yellow, Yellow, and PC every 30 days and recycle the message for months after that.The professional Letter when I use it is piece 2.