My name is Nick, I am a Residential/Commercial Broker with Home Front Mortgage.

I am looking to buy a 2 or 3-unit home in NYC.

By leveraging our network of buyers, we facilitated a smooth transition, ensuring the home was sold the same day it was purchased.

@Quan Pham have you investigated at all the potential increases in property taxes and home insurance (need to have landlord policy) and included them in your cashflow calcluations?

I would be very careful, especially not having any sort of licensing and promoting these products on a public forum.  

Are you going to live there also, or do you want to operate a shared housing model in a single-family home with tenants?

I very much have a long term play and "don't care" about the cash flow immediately, but obviously I don't want them to negative. 

I've heard there's a good chance the mortgage company won't care as long as the payments continue to be made on time but I still want to protect myself just in case.

Yes, you can go visit Class C & D tenants at their homes to convince them to sign up for auto-pay, but:1) Once you leave they will revert2) Their biggest problem is NSFs! 

A cash-out refinance or home equity line of credit (HELOC) can be powerful tools to keep your momentum going.Focus on Stability:Look for investments in areas with strong job markets, population growth, and consistent rental demand.