To legalize a curb cut in NYC, your first step is to hire a licensed architect or engineer.

Hi @Heather Bailey something to consider with this is legal mother/daughter may not mean legal duplex. 

Refinance into a debt service loan.

However, when I'd want to buy a property in Mexico, I'd want to hear from real estate agents who would provide me the best possible service.

Been paid for years on time without capital calls, or any issues, etc and they reduce my taxes through some tax incentive structure with their legal team.. but the key element is the liquidity and the fund is fully diversified with California properties as well as several other states, they do flips as well as buy and hold and also diversify by type of property as in residential luxury and commercial mix use.

Then once the 1031 is done if “legal” take a loan out an buy your new primary house.  6.  

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Relating to services.

There is so much free content out there that can teach you about guest services, software, vendor management, and so on. 

Do not rely on it for legal advice.