Either, Neither, or Both?

[Will H.]

Hello BP,

First time poster, so please let me know how to ask for advice better!

I'm looking to add a property and have narrowed my options in Charleston SC (medium priced market) to two different properties.  I have 2 single unit rentals and realize this isn't apples to apples.

Multi asking $270k

3-of-4 townhouses in a quadplex.

2br 1.5ba 1000sf with updated flooring appropriate for market

Rent currently for 850 each ($30,600), existing tenants through August 2016

Expenses:

Mortgage ($216k, 4.5%, 25y, $1200/mo)	14400
Taxes		3783
HOA (Insurance, Water, Pest, Landscaping)		4140
Maint (7% of rent)		2142
Management (10%)		3060
Metrics
Net Income			3075
CAP	6.72%
COC	5.91%

Some room to increase rent. If we could move it to 950 in a year, even with 90% tenancy, numbers remain roughly even. This area rents immediately. Also, the seller currently runs the HOA for the 4 units, which

Single condo:

1Br 1Ba, 670 sf split level

Rents for $650 ($7800)

Expenses:

Mortgage ($47k, 4.5%, 25y, $300/mo)	3600
Taxes		600
HOA (Insurance, Water, Pest, Landscaping)		1920
Maint (7% of rent)		546
Management (10%)		780
Metrics
Net Income			354
CAP	6.88%
COC	3.08%

So, my question is: either, neither, or both worth the investment?  I'm happy to give more details if they're helpful.  Thanks in advance for your time and expertise!!

-Will