I never considered renting anything residential under $5K as good investment, if you are renting out at $1.5K and collect three months up front and the tenant ruins your flooring,the $4.5K security bond would not be able to cover the damage, worst if they default on payments and you are actually in a negative situation if the tenants break lease and damage your furnishings.
In fact residential rentals are a very "iffy" investment.