This has to do mainly with the timing of property tax payments for your own home (not for your investment properties) and your charitable donations.

You don't want to start a relationship to learn about storage units and then find out they only invest in single-family homes.3.

Do you have extra space on your property for other storage? 

Quote from @Efrain Flores: Quote from @Tim Delaney: Based on rent of $1500-1600 and mortgage payment of $1700-1800 which doesn’t even include maintenance, management or capex it doesn’t seem to make any sense to keep it as a rental.

I would keep the property and eventually refi to help get your payment down lower.

The ones I manage total to 20 bedrooms.These rooms rent for between $125 to $225 per week depending on room size and amenities in the room (beyond basic amenities may include: Desk, Tv, private entry, tenant controlled AC, additional storage).This month after padsplit takes their 14.25% cut of the revenue I am recieving, from the units I own, $15,230 from 3 homes.

A HELOC could help temporarily if you plan to payoff the balance quickly and are planning to save on monthly payments in the short term.  

Interest payments hit my account as expected.

We were discussing options for payment as we don’t have a lot of capital at the moment, however they have a property that has a bit of equity we could tap into, but they already have a favorable interest rate.

This has to do mainly with the timing of property tax payments for your own home (not for your investment properties) and your charitable donations.