Your current accountant should have the exact number that is your adjusted cost basis of the old property at their fingertips. 

My electrician is working thru options but I also want to try and think creatively as well.The one advantage here is that unit 1 is currently sharing common power, and this would allow us to split it off.

My family owns four SFR's in Las Vegas and are currently looking for a property manager.

This is not to say this is the only successful method of real estate investing, but as I'm sure you're well aware, with current interest rates and overall market conditions, sourcing and acquiring LTR deals is difficult unless you're going off-market. 

This is my current listing which I have been 100% responsible for all aspect of:https://www.airbnb.com/rooms/782543855327164736?

So work with someone who can guide you through the maze of neighborhoods, numbers, types of properties, trends . . . :-)

But you can always ask the PM from time to time if they have experienced any problems with the tenant.2. expenses that exceed the pre-authorization threshold in your agreement.3. maintenance problems or concerns, especially ones that are not minor, but you can always ask about any problems, and they should be keeping record of maintenance problems during their management, even minor problems. 4. near expiration of lease term (e.g. 60 days), inquire what their plan in for a current tenancy, whether to terminate or renew.

Or as plan B, can I change the current lease to a month to month lease? 

I'm considering a commercial property (16 - 1Bed1Ba units) with a current annual rent roll of $170K fully occupied.

I’d like to have about 25k for a down payment and I currently have 15k saved up already in a high yield savings account.