Worried about keeping things separate now that I’m thinking along these lines a month after owning / after rehabbing the property but better late than never, I hope. 

Here is some info on why they recommend one still:It is recommended that single-member LLCs have an operating agreement for a number of reasons, including: Protecting against personal liability disputes Maintaining a clear separation between personal and business affairs Providing guidance on how the LLC should operate Making it easier to work with third parties Allowing someone else to run the business if the owner is unable to

LTR are passive and their income/loss is kept separate. 

I have bought commercial RE in a Roth SDIRA and separately purchased a couple investment properties via 1031 exchanges outside of my IRAs.I too have hesitation of the above index funds and need to investigate further.  

Both units were separately metered with all mechanicals in working order, making it an ideal property for investors.

Typically, a seller with a low pride of ownership will be less emotionally attached to their property.

Should I open a separate HYSA or similar vehicle to park additional cash reserves and or taxes set aside from prior projects?

I have the 2 units already done with separate entrance (utilities are not separate). 

@Ryan Rabbitt If you don’t get a match then I’d be sure to try to diligently set aside some set amount each paycheck in a separate account specifically for future investments.

I'm actually going to make a separate post right now.