I'm sure you will run into situations where you need an expert so have help on deck but demo, painting, dry wall repairs, easy stuff can be done by you!

I'm certainly no legal expert, but I totally get where you're coming from.

She's been living there for over 3 years now and from what I heard, I need to give her 90 days notice and send her a certified letter telling her we will not be renewing her lease (expires may 31).  

They’ll want to see that your credit score reflects that as well.I highly recommend reaching out to @Grant Schroeder, he’s an expert in owner occupied multifamily and has helped a lot of people start house hacking. 

Does anyone have any experience with this or is anyone a legal expert in Colorado?

Recommend using a contractor with experience with 203k's such as a contractor with the designation as a Certified 203k Contractor. 

Be sure to either post it on the door of her unit in a sealed envelope with her name and Confidential noted on the envelope face (after posting it, take a photo as your proof) AND/OR send it by certified mail or Overnight Delivery (which is preferable of the two).  

As I mentioned before I'm not an expert but I recommend you do the same since DC/MD and Richmond are very large markets. 

WE pay a consulting engineer to do a first blush then he / she will recommend which experts we need to concentrate on..

Yes, message me if you need an expert in Bothell, WA on Commercial Real Estate.