We only have enough funds to do one project at a time using this method because we pay with cash, and then pay for all materials and labor as it occurs.What would you do?

Mainly because I have a tool buying problem...anyway. my question is if I had to buy a roofing nail gun in order to roof the property would that qualify as an expense that could be deducted that same as a new sink or the roofing material?

I have a great system for getting materials with 20% off and have connections with a master carpenter.

The material is cheap, it's the labor (trench) that is expensive. 

Varinder Kumar I've looked at those, you're just buying a system that works, I have one for a poultry growing business, they tell you what to do and deliver you the materials you need like clockwork and do all the marketing/get their loyal customers.

Some insurance companies have materially better rates for non-duplexes. 

Wow, that doesn’t even look right at $1/sf material and labor. lol.

Do you already have a good handle on material and labor prices for repairs?  

But I was quoted 55 just labor costs by a contractor and I (lacking experience) estimated that it would cost 50 in materials.

But again, we dont know that their story wont be something materially different from yours.