I did a little research and I suspect that the issue is not the type of metal but an incorrect valve application. ie, someone may have used a shutoff intended for water and not a gas rated one.They're typically marked in some way.

So what that means to me is I want to get real efficient at BRRRRs for passive income and doing flips for active income.

@Lien VuongLien, as my most notes, I would very much like a consultant to come in consult is on to run this more efficiently, if the company does not aim to outsource the work, I would very interested in your referral.

@Philip Cook If you are thinking of STVR ask yourself in Stevens Point who would want to vacation in one in Stevens Point in a multi family area when they could rent a cabin on water?

Structure shift (at least in my area) typically is caused by poor water management.

I was also going to suggest turning the water off from the inside. 

It is brick exterior with casement window and has water damage beside the windows (interior plaster is flaking/bulging).

(For example, upgrading water service or wiring or a new roof for the  entire building, a proportionate percentage of that should be a QRE toward the rental unit.)

You remediate the exact problem - mold comes from water leaks/intrusion - and forget about the rest of it.

The specific units I'm looking at are 1 BR/1 BA with a water view and poolsCan sleep anywhere from 2-6 with the addition of a pull out couch and a small bunk area for families$220K (Unrenovated) - $250K (Renovated) Similar units in the same building rented for $29K (this year) but "Closer to $36K in a stable year" (per management) My guesstimated costs will be $1500-2000 monthly using a 10% down vacation home loan, I'm considering using this management company at 26%The location is Tybee Island, Georgia.