It will take some sacrifice.Key Features To Look ForWhen evaluating a property for basement conversion, pay attention to:Separate EntranceProperties that already have a separate entrance for the basement are ideal.

Custom built because I want to add an inlaw apartment and to design the house in a way where I don't have to interact with the tenants, as in, they have their own exits and entrances and perhaps make their bedrooms into mini studios (with full bathroom and kitchenette).

I think it comes down to longer term, post COVID workplace trends.

The best applicant rented the apt within 10 days of the first posting and I took the ad down on the 2nd Sunday.The couple made over $200k in income and savings equally of $200k in the bank.They wanted the apt because they had 2 dogs in a large apt building which they felt was a Petridish for the Coronavirus since there were 100s of people that lived in their building.They felt that if they were to self-isolate in an apt with dogs, best to be in a Garden Apt where the entrance is completely separate than the other 2 apts in the building (it's a 3 Family with a separate entrance to the Garden Apt).The couple also both work remotely.YES..... in a Crisis there are still good RE and bad RE.YES..... in a Crisis there is over-leverage and safe leverage.It's really how you are driving your Investment Vehicle.

I saw an airbnb where the owner had taken an upstairs bedroom and built a second story deck private entrance.  

My current tenants are both medical doctors and refuse to let me inspect my property. They say I can't enter due to state and federal regulations and their professions. I think they could be using COVID as an cover to...

As others noted, one option is the SFH with a separate entrance and zoned correctly.

For example, both your materials and "experts" instructed us that the "#1 technique for finding buyers" is to post "bandit signs" at freeway entrances and in parking lots of Lowe's, Home Depot, and Wal-Mart.

Add many years onto it, private sector starts charging entrance fees, etc.

Side by sides even bother me because the doors are generally right next to each other, not that I would let the get in the way of a great deal, but would prefer entrances away from one another, or at least not right next to each other.