You can have multiple conventional mortgages and have a great credit score as long as you don't pay late or get too close to the maximum debt to income ratio.

Your best bet is to get on the phone, get multiple opinions, multiple quotes, and make decisions on the type of build before pulling the trigger.

I have 2 ROTH SDIRA's that each own multiple rental houses. 

There will be more wear and tear and multiple headaches with several different renters.

I would guess that you have little or no experience running any kind of STR, and now want to get that experience on the back of someone else's investment, with little or no personal skin in the game, and that's not a good way to build an investment portfolio.

Multiple investors with decades of experience, some GP, some LP, some skeptics about the entire business in general sense and some bulls who have gotten rich from investing have all chimed in on this you got links to specific case studies from Brian Burke, a seasoned syndicator, a guy check from Melanie p, who makes it a part time job taking the trash out and exposing the shenanigans of one syndicator after another.Greg Scott has an excellent reputation on these forums, and provides a counterpoint to Melanie’s skepticism.

With this scenario we both have skin in the game: His work and my materials.

I have multiple condos listed for sale in Costa Rica.

PS before the hedge funds jumped in about 2011 to 2012 I was an activce courthouse buyer in Henry county and a few of the counties on the north side of Atl metro so been to many of the  auctions having them all on one day is a cluster .. you have multiple criers crying sales simultainously it can be hard to follow but you can also squeeze out one that folks missed.. we did quite well until the hedge funds knocked us little guys out of the area..

I don't know your skin thickness but know I do it with love and care for your improvement, there is no insult meant by any of it but fact is we all gotta suck, learn and try again before we get great, right.