The lease numbers are poor based on their inexperience.  

I would bet your property is zoned RSA-5If you are RSA-5, you have a rear yard set back of the greater of 9' or 10% of the yard, not to mention an overall open space requirement of 20 - 30% depending on the location (corner or mid block). 

Where would I go to find start up funds if I have poor credit,

I would be willing to bet he doesn't need your buyers, as he has a $25k marketing budget. 

And it is not the material, labor, mark up cost but rather how much will it cost for flooring, painting, etc. to get put into place.For those buying materials for their contractors, I bet they have years of experience under their belts before doing business this way.Example: how much ceramic tile do you buy for a 10'x11.5' room?  

I've only read one book "rich dad, poor dad" and learned most of what I know from talking to other investors and making deals for the last year.

The biggest mistake that investors make regardless of how or where they buy is having poorly set expectations.  

@Upen Patel is a mortgage broker...and I bet he has a lot of information on the 203k loan.Also try tagging people in the responses so they see it.

You see I had reached my end, I came from a poor upbringing where nothing was ever good enough for my parents, where getting a job was top priority.

Out of the hundred plus sites, I would say that the vast majority of the underwriting is pretty poor.