Maurizio Castagna — Real Estate Investor

About Me

Hello, I'm Maurizio, though my friends call me Mimmo. I'm an experienced real estate investor and property manager specializing in acquisitions, rentals, renovations, and strategic real estate consulting, with operations across Northern California and Italy.

I have a genuine passion for real estate and enjoy solving complex problems, improving properties, and continuously learning. Whether I'm identifying investment opportunities, managing renovations, or exploring new ideas, I'm driven by the challenge of turning vision into results.

Thanks for stopping by, and welcome to my personal page!

My Investment Philosophy

The margin you create on day one is what gives you options later.

In my experience, the most critical moment in any real estate investment is the purchase itself. Without becoming attached to any particular property, the right approach is to wait patiently for the truly good deal.

At the moment of buying, you may not yet know exactly what you'll do with the property — or what challenges you'll discover along the way. But if you've secured enough margin from the start, you'll have the flexibility to adapt your strategy and still come out ahead.

Get in Touch

I'm always open to new opportunities and conversations. Fill in the form below and I'll get back to you as soon as possible.

Mortgage Calculator

Estimate your monthly payment and total cost for a home purchase.

Monthly payment

Total interest

Total cost

Home price $400,000

Down payment 20% — $80,000

Interest rate 6.5%

Loan term 30 years

Principal Interest

Property Investment Calculators

Analyze and compare the profitability of your real estate investments.

Cap Rate

Net operating income

Cap rate

Rating

—

15%

Property value $500,000

Gross annual rent $36,000

Annual operating expenses $8,000

Cap Rate = Net Operating Income ÷ Property Value. It does not include mortgage payments — it measures the property's intrinsic return.

ROI — Return on Investment

Total profit

ROI

Annualized ROI

Purchase price $300,000

Renovation & closing costs $30,000

Current / sale value $380,000

Gross annual rental income $18,000

Annual operating expenses $4,000

Holding period (years) 3 years

Net rental income (gross rent − expenses) is used in the profit calculation.

Cash-on-Cash Return

Annual cash flow

Cash-on-Cash

Monthly cash flow

Cash invested (down + costs) $80,000

Gross annual rent $24,000

Annual operating expenses $6,000

Annual mortgage payments $12,000

A Cash-on-Cash return above 8% is generally considered strong for rental properties.