Please study engineering and you’ll have more of a grasp of why measuring amperes (electricity) or volume (water or natural gas) lends itself to reasonable precision.  

@Craig Curelop is a great resource to assist with this as he is in Denver and wrote the book on house hacking for BP.You are a little numbers heavy vs. expectations meaning that it seems like you are really counting on these numbers to work and they could be tight which can be scary for a first property.

For the first part of your question even if you were working with a realtor, I don't personally know many that have a true pulse on rehab costs and I wouldn't make any investment decisions based on their rehab cost projections.My suggestion would be to study how to evaluate the Big 6 rehab costs: roof, siding, windows, HVAC, electrical, and plumbing. 

Pretty solid points here, I would also like to add refinancing with a non-traditional DSCR based loan can assist with getting access to cash quickly as there are many lenders that have a lower seasoning requirement. 

What strategies will you implement, who is your team around you to assist with this?

@Taylor Robertson, you may also consider if you'll need any assistance from an agent on this deal.

We do have our retirement accounts, brokerage accounts, HSA accounts, etc… and will continue to invest money into those respective accounts for retirement purposes.With above stated, I would appreciate if  anyone can give me an honest opinion on how to start my journey as in what would be the best operation plan/strategy given my current situation and assumed future plans before partaking.Thanks in advance for anyone replying and assisting in the matter.

near 0% and 0% options with DPA's exist (down payment assistance) programs.

Have 15 rentals to manage - Section 8 needs to be something they focus on since all 15 are on housing assistance.

I'm also considering Legal Zoom for the LLC portion -- and I understand they may also be able to assist with the operating agreement.I'd also welcome any recommendations on accountants too.