I believe the main issue is 2 fold: 1.

Read Main Street Millionaire by Codie Sanchez.

I have a 10x8 shed that I use exclusively to store real estate materials and supplies.

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. 

Then you'll have to supply a lot of expensive wood for that fireplace and the outside fire pit. 

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 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).

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

Main problem is none of the home on market fit our needs/wants.

If there is more demand than supply, this will be the outcome in desirable areas.