We spend about $10-15/foot on our buy and hold apartment renovations.

That brings up another issue, you can test your subs by where they use grout vs caulk.Depending on your strategy, buy right? 

To make the math easy let’s assume you buy a 10 unit building were each apartment rents for $1000 a month.

If the tax due is $10k $25K maybe it’s best to just pay the tax and wait for a greet option to buy that retirement second home. 

BUT that $170,000 would give us the potential to buy a few more long-term multi-families.I'm absolutely positive that there are things I'm not considering, but any help, opinions, and considerations would be appreciated!

Speaking with my brothers this past weekend we talked about trying to keep the house in the family by buying it from our cousins.

Hi @Ken M. how are you getting around the due on sale clause being called when buying them sub to?

If I wait until accumulating enough cash in the account to buy another note, this will kill my yield.

If you're planning to buy in the US, there are programs for those that aren't US citizens.

Of course you get the basics but if you want to full version of the tool it $50.00 bucks per mo. extra and you need to buy credits for things like skip tracing.To be honest I've learned so much more right here through Bigger Pockets, and I believe  you can find a mentor on here or someone that would be willing to help you out right here.