For building a buyers list, I’d recommend joining local real estate investment groups, both in person and online.

What works best is sticking one one marketing channel, and keep doing it.You will get the higest intent to sell leads through inbound marketing lead generation such as TV commercials, online form submission leads, direct mail.

In industrial, my experience is clear heights, door count and size, loading dock access, and (probably not the case here) how perfectly level are the floors.I would also run a price sensitivity on how far rents may be able to drop to still make this worthwhile.  

@Greg Soon I work in QuickBooks online with only Real Estate Investors. :) 

Welcome to the BP online community.

@Yixin Huang when it comes to accessing the property and maintenance, you want to DOCUMENT EVERYTHING!

we do a brief pre-application online before offering to physically show any apartments. 

A neighbor finds out he is living there with a simple online search and burns your house down3 A neighbor tells the local news channel and they show your house on the nightly news 4 A neighbor find out you are the owner with a simple online search and they begin harassing you and your family where you live. 

Be sure to get a broker that specializes in these policies, some people are brokers but still do not have access to these types of insurance policies. 

Thats not to mention if its even possible as there are a lot of access issues to be worked out on the civil side and fire accessibility side.