What is their federal lending limit?  

So, if your current rent roll is still on the lower side, it could limit the amount you can borrow right now.However, if you have even a partial track record showing improvements.. say a few of the units are already updated and attracting higher rents.. a lender might take that into consideration when underwriting.

An example of that is tenant must pay for additional electric over flat fee / flat limit since now there is 2 occupants in the home instead of originally one.

If this is your only property or your reserves are limited, holding onto a low-cash-flow property might not be the best move.

Currently, I have limited capital, but I'm saving up.

Here is what the IRS says on the subject: Election for Husband and Wife Unincorporated Businesses A business owned and operated by the spouses through a limited liability company does not qualify for the election Only businesses that are owned and operated by spouses as co-owners (and not in the name of a state law entity) qualify for the election.

I might try the “emergency service” which is $20 with limited data and just use that for the smart locks and ring cameras.

Being a remote location might already limit client base.

Don't limit yourself to the San Antonio area, you may not find one! 

We bought a home built in 1900, insurance water damage coverage is 10% of the dwelling limit.