In 2025 does it make sense to build a 4plex and house hack it or is it better to buy existing multi-family? 

CPAs often advise against pursuing this designation unless the time commitment and documentation are robust, as failing to qualify can result in IRS audits or penalties.The 500-hour rule pertains to material participation in specific real estate activities or businesses.

Buy an existing house to live in and add an ADU in the back.

It may be best to partner with someone that has done one before or somehow is a local expert on lot splits.If you can add a bathroom into existing space on high cost property it can add a lot of value.  

Additionally, any existing restrictions at the town level (there are MANY) will be abolished, unless deemed "reasonable" by the state.

Insurance right now is wild, so I'd get a solid broker on your team - I'd be happy to share my contact if that would help.Also, aren't most of the existing insurances shared on the OMs for the properties? 

I think with the time you’ll spend working on this, you could find 2-3 existing parks to buy in the meantime and not need to take anywhere near the same risk 

Leverage your existing equity to invest in smaller properties, such as a mixed-use or retail space, to gain experience and cash flow.

I'm looking to categorize my buyers and blast out a text message to specific groups whenever I get a property that fits their criteria.I'm sure services like this exist out there but I'm looking for the most cost effective one and I'd rather hear the best from you guys rather than from the salesman pitching their product.Does anyone use a platform like this and how does it perform for you?

You can often get better rates with a national lender, but the customer service is non-existent, communication probably sucks, they may ask for the same documents multiple times, etc.