Alternatively, consider bridge loans, HELOCs, or post-purchase refinancing to preserve liquidity.

Ask for higher security in person have them back out on their own if they still want the place you will be safer with more security

PG's are worthless those that have PGs that are worth anything dont need gap funding they have the cash.this is a play for folks you know well .. not for internet facebook BP etc.. people that do this do it because they know you like you trust you and think your a good operator.Public has to many other choices that are much safer bet.. its not always about ROI with those with money..

In a pricier area, or if you’re banking on a perfect scenario, that cheap credit can suddenly get very expensive.I’m curious... if you went down this route, what kind of safety nets or alternative strategies would you have in place in case that perfect timeline doesn’t pan out?

.- If interest rates remain high, this is further upward pressure on rents in the near-term, as the alternative to renting - buying a home with a mortgage, is expensive - this should increase demand for rentals. - Rents are also a function of supply - 2024 saw the most new construction of multifamily units in American history (nearly 575,000 estimated 2024 deliveries of new multifamily inventory), and 2025, while not a record setting year, will see deliveries top 500,000 again - a huge supply increase. 

Being listed on multiple OTA allows users that use alternate OTAs to see your STR and could provide a higher ADR even if you end up lower ranked of the OTAs.Basically it comes down to having all your eggs in a single basket and is too risky for my liking.i am one of those STR owners that corrects anyone that refers to my STR or STR business as an AirBnB.  

Maybe you walk away with $100K in 20 years but what would an index fund or Muni bond both of which are passive and likely safer net you in 20 years?

There's very little way to go wrong here since the alternative is paying to live somewhere else anyway. 

Alternatively, construction loans can provide staged funding for significant renovations but require more documentation.If you’re holding the property long-term, consider refinancing into a DSCR loan after renovations.

Alternatively, your sibling might use a 1031 exchange to defer taxes by reinvesting in like-kind properties, though this doesn't directly fund a primary residence.Other ideas include leveraging a HELOC on the rental properties for the down payment, taking out a 401(k) loan, structuring an owner-financed agreement, or a lease-to-own arrangement.