I am a Realtor and have a seller that has an assumable loan, but that still leaves $300K between the balance and the sales price.

But that's what investing is.....deploying capital to achieve a return based on risk.

•Financing challenges: Extracting equity and taking on new mortgages require careful financial management to avoid over-leveraging.My Questions 1.Do you think this plan is realistic and achievable?

In a simplistic metaphor, the FED needs to balance out the health of the economy with inflation.

Yeah, we both want to have the tallest buildings, but we don’t have to tear down everyone else’s building to achieve that.

Do you have a family member or friend who's achieved what you want to achieve?

Using the 50% rule (taxes, insurance, Capex, maintenance, vacancies, property-management), that should give us ~19K/month in pre-tax profits that achieves our 10k/month financial goal after-tax and adjusting for inflation.Our assumption is that building new-construction would reduce capex & maintenance the first few years. 

@John Kunick, Thank you for sharing the article The Pros and Cons of Rent Control for Landlords and Tenants and your balanced perspective on rent control.

It is figuring out what your capital needs are and what your short and long-term goals are, then matching your debt strategy to balance those goals and capital needs.

So presuming you are on the "add one rental a year plan" after maybe buying 4 with the money you have, I would think it would take a number of years to achieve that retirement goal - but your mileage could vary depending on how much income you need to live on.