Good time to enter, but first make your multiple connections with plumbers, electricians, painters, pool guys etc... now.

I should have just spent more money and hire painters to get it done in a couple weeks.

If the guy/gal is a real painter and not just someone with a rag and a roller it is in the ball park.

Drive your rentals neighborhood and look for cuts in the driveways as many main water valves are in the garage and you can see the cuts (the most expensive repairs, pry $6k to the plumber and then the drywall and painters.  

I have a professional painter/ drywall repairer doing the work.

For instance, next time the painters get all the painting, flooring guy gets the flooring, etc. 

is it a single family home.. just act like it's your own.. they don't need to know what your using it for.. say it's a flip.. or your fixing up to sell..Check craigslist for painters and get references. go to a good paint supply store.. not big box, and ask who does painting they might have a good source for you. 

How many painters do you have?

Yes it can be very problematic , if you hire out lets say the drywall hanging and finishing , and they take an extra 4 days over schedule , this will push the GC"s painter out .Now that painter will have to reschedule , but they are already promised to do a 2 week job in that time frame .

Call painters, drywaller's, roofers and so on.