No comparables can lead to high vacancies (which you may have to allocate for).

A single offer at your asking price isn't nearly as convincing that the "market is willing to pay" as compared to 6 or 8 or 10 offers/interested parties.Definitely create a list of your upgrades along with the cost (assuming the cost is high enough to bridge the gap between the dated comps and your sale price) - photos don't really matter. 

All,I am new to the sight but I am looking for a resource to find metrics / multiples for comparable transactions on a given property type in a similar area.

@Jingwen Dunford A duplex is a SFR...as are all 1-4 unit properties...maybe with the exception of a rooming house...but anyway, yes, comparable sales method.

@Brent Watanabe construction never goes smoothly, and remodeling is the worst (compared to new) - it just looks like that sometimes from the outside, or on HGTV lol.

If you're asking about how we obtain information about rent schedules and so forth for comparables, there are a number of ways to do it.

Another item that most people don't take into account when comparing RE vs the SM is the fact that in the SM your losses are limited to the money you invest. 

With each interview, you notice the differences in PM as in Baltimore, their experience, skillset, etc. differ vastly.Property #1 & #2 i'm using one PM, but to gain experience and to better compare, I'm using a different PM for Property #3.

If it saves you money every month compared to what you’re paying for rent then you’re golden.

Well worth the time.also check out Philly lots of good stuff happening there and in the city prop tax's are low compared to Texas.