Check with your municipality about how property taxes will change when you buy the place.

This is obviously much better than $1,400 per month.On top of that, you will now get 2x the depreciation write-off so your taxes should go down.On top of that, you will now get 2x the appreciation when real estate price go up.On top of that, your tenants are helping you pay down the loan, initially at about $100/mo for both properties, which gradually gets better and better.On top of that, you now have more units so if one or two goes vacant, you have more renters covering the losses of the vacant units.If you want to keep these properties, I would do a cash-out refi and go buy more rental real estate.

How much money, after expenses and taxes would he property make yearly?

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).

Taxes are the $100, so about $290 a month expenses. $110 a month in cashflow.

Not only does it hurt the returns, it is a very attractive target for ambulance-chasing lawyers and title fraud.  

Some are owned by my ROTH IRA and are making tax free cashflow.

With down payments as low as 5-10%, plus low property taxes compared to the U.S., investing in German real estate is more accessible than you might think.If you’ve ever thought about owning property overseas but felt intimidated, stay tuned.

In some cases interest paid on the HELOC can be tax deductible if the funds are used for home improvements.Best of luck from Fort Worth! 

I also wonder if some hosts only list during football season and then transition to mid-term rentals (MTRs) the rest of the year.New Tax Changes Coming in January 2025Starting January 2025, Airbnb will automatically collect and remit the 5% tourist tax for Gainesville.