Rent out all the spare rooms and let them pay your mortgage.

Neither of these is a reason not to buy if you have the spare $20k and the deal still works for you.

If you could spare 30 seconds to complete this survey it would be greatly appreciated. https://docs.google.com/forms/d/1AH2ai2MqrGAzIoOVNtKWQtZkDPN...Thanks

I dig the whole site out with a backhoe, (clay, water and all)  export all that out of there, bring the whole thing down another six inches, then have the foundation guy do his form work and then fill the whole foundation hole with six inches of self compacting 3/4 inch stone.  

Either in your own house or apartment by renting out spare bedrooms or by buying a 2-4 unit and living in 1 unit.

Also, if any investor in the NYC area is looking for help, I would be happy to work for you in my spare time to gain a little bit of experience!

This allows someone to handle a flip on their schedule (nights, weekends, spare minutes...).

always 20% or greater. we do it with our profit in columbus OH. it's all about the land, density, and floorplan size. get someone who has more experience in design and agency and development. development has been doing this for years and years so just stick to what works. compact, three story walk up style is what we build for investors and ourselves. 

I would presume the biggest thing they do is spare you work. 

I could write a book on the myth of the legalities of a corporate guarantee, but will spare you.