Below are some general notes on DSCR loans:* usually used for single family or 2-8 multi family unit properties (fits your scenario)* must be for investment, non owner occupied (if looking for a product for alternative qualifying solutions for owner occupied there are other products)* can close in a personal name or LLC* usually 80% LTV for a purchase (20% down payment) & usually 75-80% LTV for cash out refis* prepayment penalties vary and are optional, but the higher the prepayment penalty, the lower the rate / options typical range from no prepay all the way up to 5 year prepay and structures vary for how those penalties work (3 year is my most popular by far)* appraisal most likely required and paid out of pocket during transaction* can be used for long term, mid term, or short term rental properties * generally 1%+ is the desired DSCR ratio but you get better rates if the ratio is higher (usually rate breaks kick in at 1.15%+ or 1.25%+) and you can still get the loan done if ratio is lower than 1% but the rate will reflect that (DM me if you wand help learning how to calculate the ratio)* the average time to close is 21-30 days* fees vary lender to lender and product to product, but $1595 underwriting plus title fees is pretty standard* 700+ credit is preferred to get max LTV, but plenty of options if credit falls below that* a typical loan minimum is $75k (have limited options for $50k+) and typical loan maximum is $3-4m (have limited options for $4m+)* 3 months reserves usually required, having 6+ months will usually result in better loan terms, 0 reserves can still get the job done if you go with a program that allows you to use the cash flow as reserves* 30 year fixed, IO, and ARMS available

The question is alternative use of equity compared to current use.  7.

Is there an other alternative ?

Unbelievable.  

The BRRRRR is not dead and value add investing will always make sense when one looks at alternatives.

If you don’t need all the cash immediately, you could store the unused portion in a high-yield savings account or line of credit for future investments.HELOC Option: Another alternative is to consider a Home Equity Line of Credit (HELOC) on your paid-off rental.

Don't make exceptions unless you have solid alternatives to offset the risk.

When you have STR like airBNB or VRBO DSCR does allow that income unless you can provide a previous 12 month rents received or a print out from VRBO.The alternative to that is if the lender or UW will allow the appraisal to use MTR/STR income/rent schedule if the rents and property is common to the area in terms of rent available for the apprasier to show proof.My advice to you is make sure you do your home work and deal with a seasoned Banker or Loan officer that funds multiple DSCR loans per month. 

To make the most of this opportunity, I'd love to hear advice on promising emerging cities to focus on, the advantages and disadvantages of each, and alternative financing methods beyond traditional mortgages

By consistently offering work, you may be able to secure lower labor costs.Source Alternative Materials: Explore alternative or lower-cost materials that still maintain quality.