I would prefer to put no more than 25% down.Thoughts?

You can look at past sales in your target market (no more than 6 months back, in a .25 mile radius) and I would suggest tracking current prices as well.

Far more profitable and no more risk than fully paid off properties....twice the returns.Diversify to reduce risk and increase returns.

Plus once it's paid off, thats it, no more power bill. 

Fannie's rules require no more than 10% can be owned by a single entity.  

I just had my latest deal fall through and there are no more houses that I can afford in my target area.

., if you can bring it up to the same standard as sold comp(s) of $300k for no more than $210k all up, you should be good to go for Refinancing your deposit back later.A 1.4% gross return per month thereafter isn't too shabby for the area, right?

I aim to redirect my career (no more travel) and supplement my work with investing.

I don’t want to make this mistake again although I also hope there will be no more heroin addict ex-boyfriend‘s in the picture ever again (I inherited her in the building, I already do background checks on everyone new and I will for everyone I inherit from now on).

Typically to meet my criteria my all in costs (purchase + repairs) have to be no more than 75% of what I have calculated to be the ARV based on comps I pulled.