While BP has a rent estimator as does rentometer.com (both allow a few free uses, I believe), I agree with @Zachary Deal that your best bet is to seek out guidance from either the listing agent or a property manager well-versed with the area. 

Last year I bought a rental house but the agent I have does not have any Experience in multifamily properties. 

Reaching out directly to investors, agents, or property managers can also lead to great opportunities.

When my agent sends a listing, I look at the neighborhood (Mt. 

I recently read multifamily millionaire but he doesn't really describe how to run comps on small multifamily other that ask an agent/or BPO's.

My son took the prelicensing course to be an agent when I had my team as big as fifty, but since it was online, he was bored, didn't pay that much attention, and didn't take the test.

I'm an agent in Tampa who helps investors look for these opportunities. 

So if you are buying a property the traditional way, using an agent, you won't usually get answers when it comes to the condition.

Did you work with any real estate professionals (agents, lenders, etc.) that you'd recommend to others?

Consulting local real estate agents to gauge resale potential for BTR units in San Antonio.4.