Depends on the actual deal I have seen 85/15 rarely 90/10 but keep in mind your primary home will have a second lien on it typically if your LTV is over 75%. 

I need some tips for investing when your immediate home is a HCOL area.

I've only had one person look at my home. 

Single-gender homes are only for transitional housing (like soberliving houses, halfway houses, etc). 

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

Leverage will be reduced from the max available, reserve requirements increased and, typically, you would be required to use a professional property manager.

I am assuming that it is an older home...just feels like a lot of hassle for little to no upside.

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

When planning a home renovation, it's easy to focus on the excitement of picking out tiles, colors, and layouts—but there’s a lot happening behind the walls and floors that often gets overlooked. 

Watch out for what gets deducted in home warranty or concessions but those will be in offers you accept.