Find a home with an ADU, garage apartment, or a spare room that can be Airbnb' ed. 

Most tech high-quality Tech coders are very good in .......... coding , making code efficient, calling different system call library and make optimization such as comparing performance in multi-threading environment, verifying ASIC logic with different memory size lol , in short most tech folks fits into Chief Architect capacity.But for real estate due diligence, LP need to have Chief Financial Officer capability, ability to read and understand financial proforma, forecasting revenue and understanding macro economic compact with certain interest rate sensitive.

I'm talking about using your "spare money" only, don't sell your house, don't sell your undershirt, and don't sell all your asset to do it, too risky! 

Not sure if anyone mentioned this but try to Airbnb your spare rooms if you don't want to rent.

Favorable Zoning: Griffin’s “MDR in-fill” zoning allows for smaller homes on compact lots without the need for variances, simplifying the building process.

Start with your primary, rent out any spare bedrooms "house hack"Use that to practice upgrades, kitchen, bathroom, curb appeal... etcNow you have experience as a landlord and flipper, use that to buy a distressed propertyAdd 40% equity to the property through home makeover, refinance into a low cost mortgageNow you are cashflowing a healthy margin on a second property, use that to build equity over time, cashout later and buy your duplex/quad.If it's going to take you 10 years to save up a down payment for a small apartment building, yeah it makes more sense to start growing your portfolio with cheap SFR flips instead.Every market is different, every borrower is different, every property is different, it would be ill-advised to recommend anything without recognizing the individual's nuanced goals and objectives with their next acquisition.

Although my spare time to complete such projects follows seasonal work highs and lows, it would be smart for any type deal I consider to involve adding value myself to the property.With at least 100k (possibly up to 140k) of equity in our home, I have done a fair amount of research in HELOCs and refi.

I'd suggest choosing an area that looks like it has potential and then spend your spare time just driving around.

@David Dachtera, @Chris May, @Joe AuI can speak about the origins of this concept and why it works.This whole theory is based on a specific type of mortgage that exists prevalently in Australia and sparingly in the UK.

I would have been easy for you to find out about the information I got.I don't like to make anybody unhappy, especially unnecessarily so the easy way out would have been to spare my time and not post.