(I've seen a lot of groups choose this structure)4) Become a part of the issuer (GP-side)I do not want to give other syndicators access to my investor database, so Number 3 seems like the best move.

We have access to DSCR lenders that can do rural properties. 

Lender had access to my savings account, DTI, credit scores, etc.I put 3% down and used the rest of my savings for the rehab.

Invest in a monthly subscription to PropStream, which will give you access to MLS data, county data, and so much more.

Justin's transactional lending site that he sent me is no longer accessible. 

You could also explore HELOC options, which might give you access to the equity you've built without needing a full refinance.

Larger checks often want longer track records.  2014 founding doesn't cut it when these same investors have access to groups with 1998 founded companies, with more deals and similarly consistent returns.Co-investment: Larger checks often do require significant co-investment.  10% of equity is common.  

Side effect, this gives you access to FHA should you ever find a property to use it on. 

Tenants do want another tenant having access to their home and the manager doesn't want tenants knocking on their door all hours of the day.

Do you have MLS access for true ARV?