The only thing I would add to Noel above is to factor in the rehab amount in that equation. 

Or are there other factors I need to consider? 

I'm developing a multi-family community from scratch, and hired a local civil engineer firm for site work (grading, erosion control, drainage plan, etc.) design.

In computing any period of time prescribed or allowed by these rules, by order of court, or by any applicable statute, the day of the act, event, or default from which the designated period of time begins to run shall not be included.

@Vicky Gatrux It really depends on a lot of factors.

I'm a 31 year old jewelry designer and fabricator living in NYC.I have no experience in real estate aside from riding shotgun when I was a kid with my mom during her open houses and property showings. 

The numbers look good though you did not factor in Hml/hold time.

I totally agree with you that one must factor that into their decision making when investing but buying subject to is a no-brainer for the most part.

As long as you have those factors, it's going to attract a lot of investors.

You have that hustle to make it happen, which is a key factor in riding any down turn.