Do you recommend switching at around 30 properties or so? 

We don't allow any "deal-making" in the forums, which includes advertising your services or properties, looking for partners, etc.

Turning the property quickly (you have to run it like an F1 pit crew)4.

Quote from @Akshay Kumar: Hello everyone, I am a new investor and looking for advice on my first investment property.

New construction properties can qualify for significant insurance discounts, but otherwise, I generally expect insurance in this area to run a little over 1% of the property’s value if it’s in decent condition.Feel free to DM me if you’d like a good insurance contact to shop around for a better rate.

Existing tenant stayed in my rental property 3 years without rent increase.

I can handle about 80% of the work for a property flip.

Make a list of all four properties go once.

There are a lot of options out there.Some of the most useful items BiggerPockets members have identified are features that save time so they can spend time working on their next property.

There are down payment programs for duplexes, i have not searched or tried to do a 3-4 unit property.