Be sure to comply with all laws (discrimination, disclosure, etc.) in your area to avoid headaches later. 

Given the lease does not stipulate a charge, I don't think a judge would get upset with you for passing on the costs they incurred by not complying with the payment provision.  

@Randall Prosisehttps://www.scottsdaleaz.gov/codes/swimming-poolsScottsdale’s current swimming pool barrier requirements apply to all single-family residential swimming pools, spas and hot tubs constructed after July 20, 1995.Since the requirements are not retroactive, pools constructed prior to July 15, 1992, need only comply with the 54” perimeter yard fencing and gate requirement in effect at the time.

The law enforcement agency receiving notification that abandoned property has been towed by a towing company shall search the records of the department of revenue and provide the towing company with the latest owner and lienholder information, if available, on the abandoned property, and if the tower has online access to the department of revenue's records, the tower shall comply with the requirements of section 301.155**.

If this is the case, there are probably a few additional code requirements you'll have to comply with (which means added construction cost) so you better have an extra unit or be able to add value to the property quite a bit. 

You decided you didn't want it and the agent complied with your wishes.I'm not going to override your inspector on condition.

Just as @Michael Gravallese mentioned, it would be best to contact a local architect or engineer to review in what state the home is in now and advise on the things which would be required to comply with current code. 

I hope they comply.

It all depends on the deal, size and type how much money you need to raise and how many investors you’re going to need.There are a lot of steps in the process to comply with securities laws So you should speak with a securities attorney first to make sure you get all the proper paperwork and documentation in order and understand what those requirements are in cost will be. 

You might find the kind it currently is has oversaturation for your local market but one that caters to the other categories is in short supply and high demand.Once you decide on hotel type you want to operate at ( make sure it will comply with the flag agreement or you might want to switch flags or going independent) then go research the other properties.