My mom does not owe anything on it.3)It is well kept, 2 bed 2.5 bath, fully furnished.

The down side is that STRs are more work, need to furnish it, pay for utilities and WiFI but in the right market (vacationers and business travelers) it could work. - If I were looking at cash flow as a really important important metric, I'd consider starting a business.

I am swamped right now with my rental renovations & furnishings I am finishing up plus I typically work late, so I haven't been able to make it much lately.

I wouldn't necessarily recommend that a family with 3 kiddos go out an buy an STR but since you already own it and have it furnished, its a pretty easy trial.

The portfolio is turnkey/ fully furnished and active.

If so just look on furnished finder for properties in your neighborhood and see what they are renting for.

You might want to ask these questions in the General Landlording https://www.biggerpockets.com/forums/52 or the Medium Term Rental forum, https://www.biggerpockets.com/forums/925 which is what you're doing if they are furnished rooms. 

Quote from @Jeremy Jareckyj: Anyone have a good MTR furnished rental agreement they would be willing to share?

I just bought my first home in the Littleton area and furnished the walkout basement and am renting it out as a MTR.

Check your competition on Furnished Finder.