Buying another property to offset taxes

[Jerry Daily]

I currently own a rental property that profits at least 15K after all deductions. I also own a rental property in cash under an LLC that profits very little on paper. I also have a primary residence with nearly a JUMBO loan at a high interest rate and I own a vacation place in cash (small trailer not worth much money but i also own the land) in a different state that I pay RE taxes on.

I am considering buying another rental in my name that will generate a loss but will help me build equity and reduce my taxes. If I buy another house that I rent that loses 15K on paper, would that offset the 15K I would be paying in profits for my other property? Do I have any SALT limitations that are impacted since these are not owned by an LLC or do the SALT limitations only apply to primary residences?

Any suggestions on how I can lower my taxable income is appreciated. Below is my current situation.

LLC:

Owns one property in cash worth about 350K. Income is around 20K, Expenses (including paper deductions) about 20K. 

Personal assets/liabilities:

Primary Residence: Have less than 20% equity in this, rest is owned by bank at high interest rate close to 7%. RE taxes are almost 9K/year. 

Rental property: Worth around 500K; About 250K loan at low interest rate. Profits at least 15K after all expenses.

Trailer: Owned in cash, do not rent (wouldn't be worth much to rent). Pay about 2,800 in RE taxes and 1,200 in HOA fees. I am unable to write any of this off due to SALT limitations.