Reading all the material out there is excellent; but each deal is unique and has singular challenges, especially if it's a quirky older home.

BP Team,If you have $750k (unleveraged) to invest, and you plan on leveraging, what is the right strategy (and I’m sure there is no singularly correct answer)?

As of now, I've told the potential roommates that I am working with the property management company to help find tenants and as singular point of communication to reduce confusion.

Should I just inform the seller that this isn't a singular transaction and that I am intending on wholesaling for a profit

Yes, but for singular or small projects. 

The difference is Full Time singular focus on REI, vs part-time sparse focus of time, resources and $. 

There is no singular answer.

Any portion of the property herein described which falls within the boundaries of a road or roadwayGrantor, for the Consideration and subject to Exceptions to Conveyance and Warranty, grants, sells, and conveys to Grantee the Property, together with all and singular the rights and appurtenances thereto in any way belonging to have and to hold it to Grantee and Grantee's heirs, successors, and assigns forever.

They, like you, will not want to give into your demands that they have to pay this singular way. 

There are SO many areas right now that will crush for STR that you might be using the calculations more than the reality of a singular market.