I drove by and it looked decent - vinyl siding, old roof.

For example labor per hour for vinyl floor or drywall or is that by the sheet etc.3.

I've told my PM "I never want you to replace carpet, if it needs more that cleaning, call me because I'll want to put either tile or vinyl planks in the unit". 

We're looking to build basic no frills vinyl sided 1200-1800 sq ft inexpensive spec homes to go on one off lots.

Once you have a chance to give it a good crawl through, let me know things such as:1) Foundation (rubble, brick, block, poured, encased rubble, etc)2) Framing - ballooned framed, western platform or something else3) Wall section:Cladding - brink veneer, clapboard, shakes, masonite, vinyl, multiple layers, etc;Outer sheeting - plank (square milled or live edged); plywood; OSB; hardboard;Insulation - None, R5 paper-backed rock wool; R5 - R8 fibreglass; blown; UFFI; etcWindstop - is there a layer of lath-and-plaster in the wall cavities;Vapour barrier - is there one, is it paper or plastic.  

What has been replace, are they copper, pvc?

If you go with a box store (I use Home Depot) just buy the windows, supply the contractor yourself, you will have better control over quality and costs this way.Oh, and now I always put in new vinyl windows(cheap off shelf). 

I replaced all of the windows with vinyl, repainted everything, and have a lead based paint disclosure in my lease.

The floor is currently old breaking commercial-type vinyl tile that needs replacing and updating.

Rents are close to market rents...could be bumped up but these are good tenants.Property is in good shape and is in no need of any immediate face lifts (no tuckpointing, minor roof work, windows 2008 double-pane vinyl, electrical updated and utilities separated).