There was no mold in the old fan but we installed the new one.

Still running the numbers, but the plan is to BRRRR but flip would be the backup exit strategy.Does anyone have experience installing HVAC in old houses that do not have central air?

They continued to ask what I could hire someone for to paint, install a vanity, install lights and so on.

Like your exact location on where you are installing them.

We currently run, via arbitrage, an Airbnb, which was also our first DIY renovation project.

DIY Cost Seg had nice functionality for adding any improvements you made to the property by category (HVAC, Electrical, etc.).

Get a recommendation for someone that does this sort of thing...there are many.The most success that my buyers have had was to get a local designer that does the design + install and set up. 

The property had window AC's and a gas fireplace upon purchasing so we immediately had central heating and AC installed.

Costs less to let it sit than paying a contractor 2-5k/week, I'm going to DIY some, and the location is awesome so no need to worry about break-ins/vandalism. 

We needed a new well pump installed on our shared well in 2022 which was ~$11k for our half.