How exactly will a 6 unit property vary from a 4 unit?

[Jacob Barnhart]

Hi, BP

I have been studying real estate for a while and am still a long ways away from actually jumping in, but after doing some browsing in the area I see a small apartment building that I think would be an amazing first investment.

It is a 6 unit brick apartment, all attached in a single row

It is in a nice neighborhood but the apartments themselves have not been kept up well, so I know I can add value and maybe talk the owners into selling for a good price. It isn't actually for sale so this is mostly theoretical but if everything seems to be able to work out well I have no problem with being adamant about trying to purchase the property when the right time comes.

I have two questions:

1. I know a 6 unit property is considered "commercial" vs a 4 unit which is residential. But how does this effect me? I know I wouldn't be able to get an FHA loan on the property, but what other obstacles would a commercial property come with besides having to pay 20% down?

2. I, for the life of me, can not find any information on this place. There is no apartment name on a sign anywhere, there is no office for me to go into talk to somebody, and there is not an address number anywhere on the property, not even the mailbox. This makes it hard to find any information about taxes or anything else. It's on the highway so the address numbers to either side of it vary by a couple hundred each way. Is there any way to find out the address or any information on this property?

Actually I just thought of a third question as well. Since this is considered a commercial property, would I be correct in saying the price would not fall with home prices if the market was to decline, considering how commercial property value is based on the revenue they bring in instead of the value of similar buildings?

Thank you guys so much for the info!