I live in Portland  Maine , I am new to real estate investing and looking to connect with any local investor.. thank you.

My main question is will I be happy in 10 years that I bought this property?

It's the concept of buying the debt attached to the mortgage rather than buying the house. 

Read Main Street Millionaire by Codie Sanchez.

Also, you will likely only be able to use the rent to offset the mortgage pmt debt on the rental property to $0 since you dont have any Sched E history yet. 

When they demoed it for me it looked so easy to use and understand, the software was the main reason I decided to take the leap. 

Incorporating a washer-dryer hookup in the main house could be advantageous.This addition not only increases the convenience for potential renters but also adds value to the property itself.

I mainly want to ask if these assumptions are reasonable and if there's anything I haven't considered:(1) multifamily units in NJ close to New York City, ~$1,000,000, 20% down payment, (2) Using the following assumptions: 4% appreciation rate, 6.5% interest rate and 5.0% refinance after 5 years, $10,000 yearly maintenance fee(3) ~$6,000 monthly rental and assume 3% increase yearly with 5% vacancy rate(4) Based on the above, the calculated IRR if selling at the 10th year is ~19% (considering tax benefits) and ~17% (without tax benefits).

My main focus is multi-family house hacking, but I’m open to other strategies as well.I’ve always had a passion for real estate and decided to move to a market with strong rental potential and affordability.

I'm in the Tampa area and mainly had mine in the Pinellas County area.