You might consider engaging an attorney to draft a "Mutual Agreement to Terminate Lease" or something to that effect that is valid in your state.A simple 1-2 page agreement outlining that 1) she has surrendered or abandoned the premises, 2) you have her permission to dispose of her personal property, 3) and you have her permission to liquidate her deposit for past due rent, can save you tons of potential legal headaches down the road, and would likely be far less expensive and time consuming than an eviction.Forget trying to collect on the remaining months of the existing lease.

Would like to know your opinion on this type of gas valve. 

Given the zip code and the price, this is not a purchase to be done sight unseen.You would also need to find out of each of the units has separate electrical & gas meters. 

Luckily I will be doing this on a full time basis and the many years of project management experience in Oil and gas Services contracting should be of some help.

As an example, if a couple brokers say that it should be a gas station, ask them to speak to a few gas station developers who may be interested and work out a partnership with them or pay them as consulting fee for helping you set it up.

Although there are three gas meters for each unit there are only two electrical meters.

Is there a valid reason on their part to void the deal if the needed repairs are obvious and a little more than just cosmetic?

instead of a valid license number.I am seeing this mostly for residential rental ads, and a few sale ads for properties in CA and a few other states.

Frank,I am a mechanical engineer myself and moved to Houston to work in oil and gas!

No one has lease agreements between the two and no money has changed hands the past couple months.The way I see it, is their "lease" is not valid and I could essentially evict as soon as I close on duplex (21st).