That is, they don't see your LLC (which is created in a State) as a separate entity so everything you do is filed under your personal tax return. 

I will draw a distinction here that there is the topic of having an emergency fund for your business(each rental property is it's own microbusiness) and a separate emergency fund for your personal budget.

But if they move out, they can’t rent to two separate tenants. 

Loans are not much of an option either as I had great credit and then went through a separation where most items were joint and not accounted for on his end.

I think my biggest concern is just privacy for everyone when I do begin since single family homes aren’t separated units

So with Reliant would you sign up with a plan under your name and just transfer that plan to the tenants name when they moved in, or are there two separate plans?

One advantage to having a separate bank account for each property is that your bank does this for you automatically.

Perhaps there is a basement with a separate entrance or an additional dwelling unit? 

Not sure how much extra the ~1100 sq ft basement would get in rent compared to just renting the main/top floor (4 br, 2.5 bath), but difficult to rent them separately here. 

There’s no real advantage to this and in fact it’s better to keep them separate for LTV, refinance and sales purposes.