Purchasing properties with illegal In Law Units in Oakland

[Sherwin Gonzales]

Hello BP universe! I seek your advice and wisdom once again!

I've been looking at properties in the Oakland Bay Area and have noticed a lot of single family homes with in law units that aren't permitted. I was wondering if such properties are even worth considering seeing the potential cash flow opportunities of renting out the in law unit.

Has anyone purchased an SFH with an "illegal" unit and rented it out? Or has anyone bought a property and got the in law unit permitted and if so, is that a long and expensive process?

Forgive my vagueness but if you need additional information, please let me know!

Much mahalo all in advance!