It's a simple 3x5" card that is folded in half.

Simple appreciation, where it increases because of the market is nice, but not guaranteed, and you have no control over it.

If door knob break (giving a simple example), Doorvest will charge me the price of door knob + contractor fees (Doorvest will not collect additional fees for themselves).

I am logging in mine on a simple excel but am curious how others are doing it / staying organized.

Just for simple math use average 20% personal tax rate.  

Setting up an LLC and accessing 50k+ in business credit is a simple process that protects your personal finances and positions you to scale faster.

In our area we do not have slabs so replacing pipe in a crawl is pretty easy.. and for sure just digging up water line in the yard is super simple

In the end, I set myself of up a C-Corp > LP > LLC structure after hearing a lot of people were doing simple LLCs and getting double taxed. 

Its pretty simple as the money just sits in the account.

An FHA loan with 3.5% down could make house hacking feasible, especially if you find a property where rental income offsets much of the mortgage.For now, prioritize house hacking close to work to keep things simple.