Upon personal inspection, I often find terrible workmanship.For example, I saw a "newly renovated" property advertising it had central air.

I also don't know if there's a specific process we have to go through with the city for it to be recognized as a duplex down.Basically, I just don't know if the status as an illegal garden unit (the lack of ceiling height and correct zoning) prevents me legally from using the space for either of these ideas and legally, or if it's just dead space. 

I want to ensure that nothing is overlooked that might prevent future construction.Does anyone have any similar experiences or advice they can provide on navigating subdivisions and zoning?

Hire an attorney to recover the amount from the tenant.If allowed in your local laws, the best ways to prevent tenants from filing disputes are:1.

These are some of the ways the clients could be affected by property managers who are not prepared: Extended VacanciesInadequate marketing strategies and tenant screening processes can result in prolonged vacancy periods, translating into substantial lost rental income.High tenant turnover due to poor resident relations further exacerbates vacancy losses.Inadequate Maintenance and RepairsNeglecting preventive maintenance and delaying necessary repairs can lead to accelerated property deterioration and higher long-term repair costs.This can also negatively impact tenant satisfaction, contributing to higher turnover rates.Legal and Compliance IssuesLack of knowledge or disregard for landlord-tenant laws and regulations can expose investors to costly legal disputes and penalties.Failure to properly handle security deposits, evictions, or fair housing practices can result in significant financial liabilities.Ineffective Financial ManagementInaccurate budgeting, expense tracking, and financial reporting can lead to uninformed decision-making and missed opportunities for cost savings.Failure to optimize tax strategies and leverage available deductions can further reduce net returns.Diminished Property ValueInadequate maintenance, high vacancy rates, and poor tenant screening can negatively impact a property’s perceived value and appreciation potential.This can significantly affect the long-term return on investment when it comes time to sell the asset.While a 10% management fee may seem reasonable for a well-performing property manager, the cumulative impact of mismanagement can quickly escalate the effective cost to investors, potentially outweighing any perceived savings on the management fee itself.

I almost feel like I have a nitch of selling condos in the area that were used as Air BnB's against condo rules. 

After it is clean, keep it unplugged, leave the doors open, lighlty spray it with something like pinsol (nothing to puddle, more like a light mist), and let it air out for a day or two. 

In the 3.7 feet wall in the square nook is a window that goes pretty close to the floor and an air vent so I can't put anything there.

Is there any way to prevent this from happening?

So, they will need to remove insulation to access all joists/floor boards.We agreed Dehumidifier to be installed to prevent the issue from reoccurring.I already have vapor barrier installed.Crawl Space Ninja stated that the fiberglass blanket insulation between the joists in my crawlspace can remain removed post remediation.