My follow up responses are more general answers but there is quite a bit more that goes into this subject. 

You just want to be as close to the subject property as possible when running comps. 

I did have to work subject-to current financing rate with the lender, but once that was settled it all worked out.

Feel free to DM if you'd like some resources on the subject.

What’s the best title company in Atlanta to work with for doing creative financing deals like seller financing and subject to?

@Andrew T Bolton since this subject is for a "primary home" this basically this comes down to where you are declaring your residency. 

Mike, this subject property has been totally enflamed.

Renting out rooms in a single-family house may be subject to special regulations in some places.Have a well-defined plan in place for room rentals.

This is why you really need to review the comp sales versus the subject property to make sure you are comparing apples to apples (or as close to).

This can easily result in a situation where some states never collect tax revenue and other states collect more than they deserve due to mis-allocation of passive losses.For NC, it doesn't appear that the state tax code addresses this situation."17 NCAC 06B .3904 TAXABLE INCOME OF NONRESIDENTS AND PART-YEAR RESIDENTS(a) Nonresidents and part-year residents shall prorate their adjusted gross income, adjusted as required under G.S.105-153.5 and G.S. 105-153.6, to determine the portion that is subject to North Carolina tax.""