$600 a month wouldn't be enough for me and serial refi costs money, generally loan time also. 

By purchasing properties in high-demand urban areas such as Berlin, Munich, Hamburg, or near military installations, American investors can generate reliable monthly rental income.

The terms for a 2nd position loan on a rental is 6%, 25 year term,  and 2 points origination fee.  

The process from start to finish would take four months and cost ~200k to build, with comps in the area around 355k-lender man said, refinancing would take six months as most lenders wont refinance a property unless its been built for six months, affecting the strategy to get paid out from refinancing quicker and closing out on construction loan-The property would not appraise at comps value, but at the cost it took to build, affecting getting paid out from the refinance.

Maintenance and potential repairs will also require a long-term financial plan and setting aside a contingency fund for such expenses.The steady cash flow, appreciation over time, and tax benefits can make a meaningful difference to your wealth in the long term, especially with the principal paydown on the mortgage.However, if managing the property from a distance feels too burdensome, or if you’d prefer the certainty and flexibility that comes with having less debt (especially given the high mortgage rates), selling and using the $100,000 in equity to reduce your loan for your next home may be the smarter move.

The deal will leave the seller at your sons mercy for decades (the life of the loan).

Use Real Estate By the Numbers as your guide, make sure it tracks the loan pay down and depreciation and have all of those numbers pour into a Schedule E.

Let's me put numbers to it: Bought a STR for $400K, 20% down, 8% DSCR loan.

The balance on my bridge loan is $120,000.

I spent years there in Jackson did probably 1000 flip loans to locals and owned at one time 200 sfrs..