If a property appears vacant i will try to look in the front window, or even the mail slot. 

The cost is 168k It rents for 189 a night 1,100sqft Marina slot and fee is 200 a month.

In essence, you're going to get what you pay for.If you're making simple revisions to a rehab you may be able to avoid hiring an architect by sitting down with your contractor and a pad a graph paper and sketching the revisions that you want to make.

It has been many years since I've used an coin operated washer or dryer, but they used to be able to adjust what the amount they charged by putting something in the slots. 

If it's occupied, knock on the door.If it's unoccupied, tape a letter to the door (or slip one underneath or through the mail slot if equipped.As suggested above, talk to the neighbors.Ask at the post office what they know?

Today was slotted mainly for phone work.

I am not looking for a lockbox with a single code. i.e. each prospective tenant will show up at the house, after being verified,receives an their personal code which is good for that time slot of say 20 mins.

Add rocks/or concrete pad as per what your city will allow.

Because of this, you have just opened up 1 or more slots available for additional Fannie Mae financing.

I agree house hacking a 4 plex to start with minimum down is the Highest and best use of your FHA loan slot..