Put in the extra work to refine your list and it will pay off in the response rate.

There are a lot of extra costs that go with home ownership-property taxes, repairs and maintenance, etc. 

I also have 20 k in student loans left.Now, I am planning on building up reserves and throwing a tad extra at the mortgages each month.Will one more unit make your portfolio that much better ?

Does it have enough reserves, any special assessments on the horizon (could be extra thousands in additional fees), when is the next big expense coming (like roof change, elevator replacement, etc), the rent cap and what rents options are available.

You can only do it in certain zones.Here is where you can read up -https://raleighnc.gov/permits/services/short-term-rentalsAlso, you won't get any extra appreciation over a similar long term rental.

I do sober living, which is basically co-living with some extra rules and a focus on a specific population. 

Don't think of that 3k extra nut you want as something you get in one fell swoop.

Here's how they work: they advertise a low initial cost of $499 for a 30-yard dumpster, but in the fine print, it says you'll pay extra for any weight over 3000 pounds.As a first-time home renovator, I assumed the 3000 pounds would be more than enough and ended up paying a lot more than I expected.

My thoughts from the little I know about the raw numbers however:1) You have no reason to not raise the rent at least a small amount to compensate for the extra cost of ownership the past few years.

If you have enough room, it's always great to have one extra amenity that not many other properties offer.