There are a couple reasons why this one is more trouble than it's worth.
When compared to a typical 2-4:
- These will typically rent furnished.
- They require *constant* management, usually including an onsite manager
- Tenant disputes, frequent police and paramedic calls
- Daily or twice daily cleaning of the bathrooms and watching the hallways
- Constant tenant churn and each turnover requires cleaning and possibly minor repairs
- Utilities will be master metered which means the tenants have no incentive to turn off a light or a heater or AC unit
- Furnishings will get damaged, bedding needs cleaning, stuff gets stolen
- Finding comparables can be difficult, particularly if there aren't many such properties around to begin with
- The property is more similar to a motel than to a conventional SFR or 2-4.
The list goes on. The expense loads on these are extreme when compared to a 2-4 or 5+ multi-family under conventional occupancy. And if its really being operated as an SRO instead of a group living situation then any attempt at an income approach is going to have to separate the income attributable to the expense/management/profit margins from the realty interests.
It's like Han Solo said:
"this ain't like dusting crops, boy." If a CG has never done one of these they will have to gut it out with the learning curve, which almost always means they're going to take a beating on the fee. Probably most appraisers can gut it out if want to put the time/effort into it but having to learn how to work their way through a more detailed income/expense analysis for both the subject and usually also the comps is going to take a lot more time than anyone could charge for. Unless they've got some experience with doing income/expenses at the more detailed level.
Some fees aren't worth earning. Ask me how I know.