I would upgrade properties every 12-15 months as allowed by low down payment loans if my significant other wasn’t risk adverse and opposed to moving.

@Steven HsuBigger Pockets is a great place to find a real estate tax accountant.A good real estate accountant can save you thousands of dollars by leveraging entity selection and formation, tax deductions, cost segregations, bonus depreciation and tax planning.I recommend finding an accountant who specializes in real estate taxation, business taxation, financial planning and tax planning.You may want to consider working with your accountant remotely to expand your options.I would also recommend looking for a accountant willing to work with you throughout the year.

. - Fortunately, our transparent systems allowed the owner to catch it:)- Full transparency - we would have never caught this honest mistake:(An owner also needs to be involved to approve & fund large expenses: maintenance, property tax & insurance payments (if they want to be more hands off), evictions, etc.A great PMC should also have a chat with you annually about your future plans for a property and your portfolio. 

In theory, since we don't have a prepayment penalty, you could borrow the money, complete the rehab and pay off your loan before your first payment was due.

A landlord who is not over-leveraged to begin with may simply refinance their loan even when prices go down just to re-amortize the loan and lower the payment to preserve cash-flow.

A good real estate accountant can save you thousands of dollars by leveraging entity selection and formation, tax deductions, cost segregations, bonus depreciation and tax planning.I recommend finding an accountant who specializes in real estate taxation, business taxation, financial planning and tax planning.You may want to consider working with your accountant remotely to expand your options.I would also recommend looking for a accountant willing to work with you throughout the year.

Wealth-drivers are appreciation, debt pay-down (ie. principal payments) and tax shielding.

The terms remain the same, we still pay the monthly mortgage payment.

Are some banks better for mortgages than others (in terms of down payment, interest rate, length of mortgage etc.)?

Appreciation of an asset with low down payment, tenants paying principle down, tax advantages, all reasons why real estate is an investment of DOING.