I faxed an unsigned copy of the lease and they signed and sent back, they transferred funds electronically to my bank account ( I have a separate account for tenants so they don't have my "personal" numbers), as long as the funds go in, I sign and their place is ready when they get here.

The infrastructure isn't there & no matter how smart the new robot-car is, it won't prevent some teen in an '84 Buick from careening into them while texting.

Are there limitations around how many properties I can provide seller financing for a year, even if each property is in a separate LLC?

Here's the thing, every seller knows that *their* property is separate from all others.

As for separate LLCs for each property that would shield the liability from one property not affecting the other property but might hinder you when u are ready to leverage the business to get a loan.

Or create a separate site completely dedicated to producing leads with a more obvious "webuyhouse" web address?

If property is tenant occupied, rents: Unit # 1 Unit # 2 Unit # 3 Unit # 4 Are there separate utilities for each unit?

I am currently looking into a duplex that unfortunately is not separate metered and has electric baseboard heaters.

The 30 day notice is a separate notice and isn't mentioned in the change of ownership notice law, so I might have standing there.

Roth Solo 401(k) - you can maintain additional, separate 'bucket' under your Solo 401(k) plan where you could make after tax contributions, thus, investing tax free for the rest of your life.