When its included in a lease for real estate then the laws pertaining to residential rental security deposits in your state apply but when its separate you should have more leeway to get some additional deposit to protect you.

ADUs can significantly enhance your property's value by adding living space that can be used for rental income or as additional living quarters for family members.The increase in value from an ADU can vary widely depending on several factors such as the size, quality, and functionality of the ADU, as well as its integration with the main property.

Additionally, the price point is still cheap enough to find the 1% rule and positive cash flow and it's super landlord friendly (so you will never have to go through a 12 month eviction or anything close to that!).

I've included an example below to help illustrate this.So different lenders have different rates (which do vary even for DSCR loans) but these are factors they all consider.See example below:DSCR < 1Principal + Interest = $1,700Taxes = $350, Insurance = $100, Association Dues = $50Total PITIA = $2200Rent = $2000DSCR = Rent/PITIA = 2000/2200 = 0.91Since the DSCR is 0.91, we know the expenses are greater than the income of the property.DSCR >1Principal + Interest = $1,500Taxes = $250, Insurance = $100, Association Dues = $25Total PITIA = $1875 Rent = $2300DSCR = Rent/PITIA = 2300/1875 = 1.23If a purchase, you also generally need reserves / savings to show you have 3-6 month payments of PITIA (principal / interest (mortgage payment), property taxes and insurance and HOA (if applicable).

The cons as i see it include loosing the 2 of 5 year cap gain exception, typically not an ideal rental because the emphasis at purchase was buying a good home for your family and not a rental with optimal return (my ex-home consistently has the lowest cash flow for equity in my RE portfolio), not disconnected enough from the property causes addition angst on damage and may result in over improvement.  

Additionally, ensure that all necessary notices for filing an eviction have been posted and properly documented in your records.

Great use of space and provides additional income to offset the monthly payment.Orlando, and many other cities, have a "missing middle" problem in regards to housing. 

All important factors to consider- population growth or decline, job growth or decline, inventory rate and movement- is is a seller's market getting stronger or softer or a buyer's market getting stronger or softer?

There are markets that have built in "gotchas" like the rising cost of insurance in coastal FL, regulations in much of the west coast states and property taxes in Texas; however, the deal itself is the most critical factor.

Additionally, the price point is still cheap enough to find the 1% rule and positive cash flow and there's amazing appreciation potential.