That being said, we have owned a fourplex in a small town in Michigan for about 10 years but had no guidance when we purchased, I have found all the information Bigger Pockets offers extremely helpful and I am grateful in advance to any advice on this thread. 

Could/Should the 2 LLC's be tenants in common for the new property purchase?

Conversion rate is extremely low when you get started BUT it will give you good practice speaking with sellers who have a ton of objections.

I've never done a partnership, but these are common issues that I don't often see addressed in contracts found online. 

Extreme opposite of what we saw in 2021-2022. 

I’m looking at private lending to flippers with a line of credit or using a line of credit to put a down payment on a new cash flowing property (which is extremely hard for me to find right now) but with a line of credit as a down payment I would be financing a new property at 100% at unfavorable rates.

Verifying last 2 years of rental history and income extremely important to find the “best of the worst”.Make sure you understand the Class of properties you are looking at and the corresponding results to expect.The City of Detroit has 183 Neighborhoods we’ve analyzed.PM us if you’d like to discuss this logical approach in greater detail!

I have just purchased a small SFH 2/1 in Miami that needs updating and I am looking for a contractor that can help with the job.Any guidance or references would be extremely appreciated!

For your first question about doing a "subject to" on a hard money loan, it’s possible, but it’s not as common since hard money lenders typically have stricter terms and might not allow a loan to be assumed like a traditional mortgage. 

One size does not fit all.Just keep in mind that between now and Oct 15 we're all extremely busy.