Long story short, I paid off the loans with the lines of credit, which I continue to utilize over and over again for the same purposes I've spelled out for you.There are other methods and if you'd like to message me feel more than free to do so!

The main concern I have, is that the property has asbestos siding, and I have never dealt with this.

Otherwise, you should be able to go up to 10 loans through conventional methods.

What is the most conservative methods for tapping into the equity and slowly building my property portfolio.

It's simple: He complies with the payment dates and method detailed in the lease or you move to evict him.

My goal is to use the BRRRR method and have at least 11 more rental units (either SF or small multi-family).

What has been posted is enough to be "dangerous," if it wasn't tax season I may be up for a phone call to discuss your concerns further.If you are interested in investing in a syndication and the tax treatment is a material matter I would question whether it is a good investment. 

Its important to note that the rent from the 3 units is added to your income to qualify (less advantageous calc method)  and is not used to offset the mortgage (more advantageous calculation).Also you have two current loans outstanding VA loans that have 67% of your 667k limit tied up.

Research the BRRR method as much as you can and build that wealth portfolio. 

My concern and probably your's is the transition from a paying job to a job that typically takes months before you build your network and close on your first deal.