I have no development experience however have a large portfolio of homes in the Charlotte suburbs which are solid performing assets and have done extensive rehab's on many properties from basic new kitchen/ba reno's to full structural/electrical/plumbing renovations. 

Our sister company Palmetto REsolutions performs turn over, renovation, and maintenance work on the properties we manage and buy/sell.

My Roth IRA my 401(k) and about everything else performs better then my primary residence

There was plenty of meat on the bone so we made it happen. so far it has proven to be a great performing asset and we have plenty of equity in this red hot market!

For example, I like to use the performance metric of ROI and I think 3.69% is pretty weak.

The performance of the property is really more dependent on the skill of the management than the property itself.

If a lender looks at your tax returns to determine past rental performance, then it all depends upon how your CPA recorded your maintenance expenses and utility expenses.

I am working with seller realtor to get historical property performance records. 

Have you been happy with the performance and why the one switch to long-term?

Does their vacancy perform similar to standalone cabins?