@Jeff Fruhwirth   I am guessing no heat in Cheyenne in December is a major issue

As Account Closed suggested, you may be able to sub-meter much cheaper than running two lines from the street.Propane is expensive these days, I have heard of people around here (mn) having heat bills of $2k - $3k/winter for a normal size home - that's a LOT of money compared to the average of $600/winter on my properties.

a couple of box fans + 20x20 filters.... run continuously 1-2 days. dump the filters directly into a trash bag. replace and re-run.have the ac/heat ducts (if any) professionally cleaned... you don't want to breath the nasties again....also i would check for cold/humid sections of walls. also crumbly (drywall/plaster) around baseboards. if you have those, (respectfully sorry) you are in for a surprise if you open the walls.....now, what is the source of humidity?

After permits ,elect,heating, costs and labor was appx 25k.

Usually:roof/foundationdoors windows trimTileplumbing/heating/elec/fans/vents while everything is exposed.hang and finish sheet rockVanity/sinksToilet/tubPaint ceilings and walls.Then light fixtures/cabinets/flooring/appliancesFinishing touches.

You have to control all elements at all times which admittedly can be difficult at times.Nothing I say should be substituted for legal advice from your attorney. 

It's a grueling process, giving tenant deadlines for each step, and give notice accordingly if she misses (making appointment, buying mattress covers and mattresses, heat treatment of all clothes and furniture).

How long did they look into each element of the project for a more exact time, price and evaluation of the task at hand?

We are looking for a certified gas technician who can remove an old gas stove for heating and install a brand new one in our rental.

Heating is also another factor.