If I buy these lots—7,500 square feet with a 50’ width—how comfortable can I be that the person who buys them from me will be allowed to build a house on them?

Sell and make it some other person’s problem.

Hi all, I've been a member for a while but I have not been able to focus on real estate investing as I've had to tend to my other 2 businesses the last few years. 

Your CPA should be able to guide you how to categorize all your expenses so that you can do it correctly yourself.https://www.irs.gov/businesses/small-businesses-self-employed/tangible-property-final-regulations#:~:text=The%20de%20minimis%20safe%20harbor%20election%20eliminates%20the%20burden%20of,is%20properly%20deductible%20or%20capitalizable.

The following is based on my personal experience and is my opinion; it may differ substantially from othersAttending seminars, boot camps, introductory lectures, etc., put on by people trying to “upswell” mentoring services, is the singly WORST thing you can do to launch your real estate career.  

It's about being a person great mentors want to help!

I am a build to rent investor expanding my business into the south Florida market.  

This year I signed up for sessions there like underwriting multifamily and cashflowing multi family in high rate environments and I'm excited to hear what they have to say, plus it's in person so lots of good networking to learn from others.

It's called the law of unintended consequences and law makers do this all the time trying to regulate businesses they don't understand.

So definitely shop around and don't just take one persons word for the full picture of what is out there for you.