Aim to max out the Fannie Mae and Freddie Mac limit.

@Sajan JivaCPA license is a state designation.From a tax perspective - a CPA who lives in NY is not breaking any laws or codes for filing a tax return or providing tax strategies to those who live outside of New York.from an audit perspective - A CPA may be limited in signing assurance/audit related documents to the state that he practices in.You should be eligible to write off the items you mentioned.

Concentrate on saving as much money as you possible can by living a frugal life style.

Also with no kids, you might want to consider renting untill you figure that part out, lifestyle, space, daycare/schools take on a different meaning then they do now.

If you are just getting started with limited cash, I would concentrate on learning these alternative methods.

We do have county sewer service but it is limited, for now, to the towns.

Does anyone know of any more potential limitations that may make it too difficult to do business in some states.

Delayed financing will get you good rates but you're limited to purchase price

I lived the Surban lifestyle and most of my investing has been in a Surban market. 

To be safe you can go with a longer term 10-year term which limits your upside but also could prevent you from having to refinance during a down turn.