There is also the very real problem of leaks over the weekend when the hardware store is closed. 

I always thought Lowe's seemed to have higher prices...When trying to match screws and the like, Ace Hardware can't be beat.

You should also get a good snow shovel (hardware store) and maybe a broom - there will be small areas, like steps, where it will be hard to use the snowblower.For the lawn, if all your grass is within 100 feet of an outlet, and the lawns are relatively "open", you might consider a corded electric mower. 

The cost of the software and hardware is substantial.

My go-to spots have been Home Depot and Lowes, Oakland's Habitat for Humanity, Sincere Hardware and San Leandro Granite for granite for kitchen countertops. 

Single-hung usually next in line, then double-hung... casement/awning windows of comparable size are usually the most costly of the common window types.Be sure to pay attention to the egress needs - while a 2650 DH might meet egress, a 2650 casement may not (or it may need side pivot hardware).I could write a small novel on what to look for when buying windows... however, sleep beckons.

The property in question is a SFH, needing new flooring as a major repair and also several minor repairs such as hardware, cracked tiling.

However, if he drove to the site, determined he needed to reset the concrete, drove to the hardware store, came back to the house, mixed the concrete, and reset the post then I think the charge was probably very fair.  

One thing that has always helped me stay focused is keeping my goals in my wallet.

Not knowing your holding period isn't a good sign --as it often also means not knowing your exit strategy and will likely spook any anyone trying to fund a deal.From an FHA standpoint, 3.5% compared to 20% for down payment may be good (less hit to the wallet) but also may be moot in terms of getting a deal to make sense for a noob investor in LA.