@Nate Jenks no problem, here to help and clarify.When we speak to "cash out" loans in lending the maximum loan amount is usually 80% LTV on a primary home. 

I’m finally wanting to pull the trigger on getting another property, but this time the primary goal of turning the sfr into an Airbnb.

Hey,If "building class designation" is the same as zoning, then this seems like it can definitely be appraised as a two family, with both the legal and actual designation as a two family.Depending where in NYC, that may not help your valuation, as primary residences sometimes sell for more than investment properties, so check that out before challenging the appraisal and definitely before paying for another one.Double check all this with your lender/broker as well.Best of luck!

We are a team of five employees, and our work involves renting land for a number of years, designing and developing buildings, and managing them—including renting and maintenance.It’s an exciting yet challenging new chapter in my professional journey, and I’m eager to learn and grow alongside all of you.One of my key goals is to modernize our company’s workflow, which is currently reliant on traditional pen-and-paper methods. 

I was able to do a HELOC on my primary and tap into some of my Roth IRA $ (tax free) to come up with the 130k since all I had to my name was 25k in savings.

Traditional lender financing with 30-year fixed loan and 25% downpayment.

@Brent Hindman Are you looking to upgrade your primary residence or what would you be looking to purchase as the next home?

No one in my family really does real estate except for my mom which rents in PR and a couple houses in Dominican Republic but these were things that happened by chance (DR houses were inherited and PR was our primary residence when I was little) ...  

I would have bought rental properties of any sort before I bought my primary home. 

Quote from @Kevin Zmick: When a property doesn't rent, there are two primary reasons: the price is too high or your marketing isn't reaching the right audience.If your REALTOR listed it in the MLS, then it's probably syndicated to the best websites and you're casting a wide net.