Is there anything I can do to reduce the gain?

If you can get to 10 over a 20-year period, you will change your life and look like a genius.Increase earnings, reduce expenses, save, and invest.

Current pursuit:Investor/Partner: Design-Build, Renovations, Fix-and-Flips, DevelopmentHow I can help:CAD/3D Rendering/Models, Project Management, Reduced Material Costs, Expert Design Solutions

Quote from @Scott Bloom: You can get a commercial grade policy from major carriers where they lump the risk across multiple properties into one policy, reducing your premiums.  

Not fully versed in every nuance of buyer/seller/agent negotiations, but as a future seller I hope to reduce my commission payouts.Cheers

Is your Adjusted Gross Income over $150k where you can't reduce your income with rental losses?

Changing filters regularly reduces maintenance by 35%.

My team and I have gotten (just the other day) a house $1.6M reduced down to $1.4M 30 days on the market, a property 68 days on the market reduced to $100K, and then another $24K in closing costs.

An LLC shields personal assets from business liabilities, while S-Corp taxation allows you to reduce self-employment taxes by taking a reasonable salary and distributing remaining profits as distributions, which aren’t subject to payroll taxes.

The properties are rented and the debt is reducing via tenant rents.