Hindsight is 20/20 of course but this is advise borrowers to go the conventional route (assuming they can qualify of course) because it is a cheaper loan then FHA with the MIP for life. https://www.bankrate.com/mortgages/remove-fha-mortgage-insur... 

I only recommend this route if furnishing the STR is not the long item.  

There are so many different ways to invest in real estate, but how do you know which route to take?

If that is the route you need/want to go, happy to help however we can. 

What is the most cost effective route to take?

I would try a loan or mortgage route on the SF and see what they say. 

I'd be happy to help you get some rough pricing if you're interested in this route.

However while the chances are very slim, this route violates the due on sale clause in the Deed of Trust you signed for your loan

I mean if you get it, it will allow you to retain your investors.As an alternative, you can take the route others suggested:1) Fund  of funds2) Partner with others on GP side in an investors' management roleKeep in mind, that both options would require you to have a full understanding of the role and the regulations involved. 

If you chose to go another route, however and proceed with an attempt to evict or otherwise claim that my client owes you anything after she pays September rent, I am happy to take this case before a judge.