FHA loan limits pretty much you out at a $1M purchase price.San Diego is not great for initial cashflow but for long term cashflow it is one of the best markets in the US.Qualifying for an FHA loan on a duplex is easier than qualifying for a single family home since lender is able to use rental income from the second unit towards your income.Your 3.5% down payment on a $1M duplex will go much further in building you wealth than spending that money on a $250,000 property in a random state that you don't know. 

My question today is: What are some really good ways to generate leads for mid size multi-family properties? 

Not even days, and you get MULTIPLE buyers.When it comes to wholesaling (or anything in REI) it is ALL about lead generation.

It will be easier snd hopefully cheaper to do so ahead of time than to have an emergency and be randomly dialing people when something is wrong.

Think about your time spent on generating top line growth.

Your subs arent going to try and squeeze in some random nobody but they will try to squeeze you in. 

No worries, we do this all the time and the sellers rather us wholesale the property than us buying it.Then anything you need to know about wholesaling is easy and it is not wholesaing you need help with.You need help with Lead generation NOT wholesaling.

If they need to bring in or generate $1800 say in revenue per loan, when so many fees are a % of the loan amount,  the govt would need to make up the gap IMO.  

Also bigger is better for generating revenue. 

Definitely but anything turnkey you'll most likely have to find another creative use to generate income such as STR in order to make it viable.Good luck.