If you find someone at a REA or other investor meetup group that is currently in this space it can make your first time go much smoother. 

With commercial office space starting to return, I am interested in establishing a syndication group that would be willing to invest capital into commercial office buildings.

This residence features 3 bedrooms and 3.5 bathrooms, encompassing approximately 1,700 square feet of living space.

I would look at the DSCR loan as the first option.By the way, I suspect you are going to be disappointed by any refi appraisals   ADUs typically appraise poorly   JADUs can lower the property value Vs having the space as part of the primary unit.  

Investment Info:Office Space commercial investment investment.

One just need some interior paint and refinish the hardwood floors and it was ready to rent.

As you can guess, I’ve been in this space for a long time, coaching and investing, and I would be happy to help if there’s anything I can do to support you, just let me know!

Charges for marketing pics, 3-D Tours, Floor plans?

Since you are not doing super high end finishes as mentioned, doing high end flooring and all other stuff just above builder grade does not warrant tile or full wood flooring. 

There is roughly $20,000 left in rehab including windows, floors, a new kitchen and bathroom.