@Ray Hernandez I'm going to be a bit conservative and say maybe 50+ units that's fair. It also depends on the type of deal more so than the size. For example our latest Jacksonville deal (82 units) had about a 10% COC return on average. However, the first year was about 7%, year 2 -11%, year 3-5 10%, that was because we are doing interior upgrades, and our loan has 2 years of IO.
I think most syndicated deals you can reasonably expect to make close to 15% annualized. That's the minimum return we usually try to hit for investor returns. Using the same Jacksonville property, we projected an 18% annualized return in year 3 net to investors. Most syndicators will probably talk to you with an IRR which takes into account the Net Present Value of money. Basically 15% annualized in 3 years is more valuable than a 15% annualized in 5 years; or a dollar today is worth more than a dollar tomorrow. We usually shoot for a 15% IRR net to investors which, depending upon the length of the deal, is usually at least a 17% annualized return net to investors.
However, not every syndicator or deal is the same, you have to look at their assumptions and see what they are underwriting to. The biggest one I see all the time is the exit cap rate upon sale. A lot of people will assume a LOWER cap rate than upon purchase. This assumes that the market will continue to go upward and not remain the same or decrease. Personally, and the way I was taught, we underwrite to a HIGHER cap rate and usually add 10 basis points (.10%) to the cap rate for every year we plan on holding the property (5 years 6.5% cap purchase to a 7.0% cap sale).
There's a bunch of other things like vacancy, delinquency, reserves, fees, income increase each year vs expense increase each year, etc. that can be changed very slightly that can turn a bad deal into a good deal on paper. At the end of the day you have to look at the track record of the sponsor, and then you have to have a level of trust with that person in order to invest with them.
Edit: I should clarify re-reading your question. 8% for under 50 units is doable and a good return for sure, it's just significantly tougher to find quality property managers that will do less than 50 units, because if they are that good why would they continue to do sub 50 unit properties? Obviously there are many that do and they have viable reasons, it's just not as likely as there being an alternative reason. Also, an A class asset in a top 15 MSA by population is never going to make you 8% COC, however 20 units in a small tertiary market thats a C class asset probably will; but that property is not going to appreciate like the A class asset probably will. That's why we tend to look for B+ to solid C properties which have good cash flow and have some upside on sale as well.