Determine what size in that niche you are focusing on for product type and sales price.3.

I've had a slow start, but I'll be leveraging many of the folks I've met at CFRI on my first deal.You've got a trade skill and that's going to make you a valuable partner.

Other recommendations or new product?

But really depends on your market @Nicolas Escobar as the winter months come around in certain areas in my market seems to be a small slow down of fix&flips however investors are still buying properties for inventory year round. 

It was a slow start but now it is moving at a quicker pace. 

I acknowledge the approach of many in the BP community to buy properties aggressively,  but we opted to go slow on our first three properties and paid them off in full.  

What books do you recommend for increasing efficiency and productivity when it comes to managing rehab projects?

For office I would be wanting a 9 to 10 cap or higher at this point in the cycle. 7 to 8's for that product is overpriced at this time in my view unless rents are at about half of current market.

Go expensive on equipment and melting products because a slip and fall law suit will cost you thousands and raise your premiums.

What you are likely missing is the repairs would be more than the value of the finished product.