I understand this will be subjective off of what investing is taking place, what is the portfolio target, what is the area, etc.

Purchase price: $155,000 Cash invested: $10,000 Sale price: $255,000 This was purchased subject-to with paying the seller $3K upfront and an additional $12K upon the resale.

Mark them up 10-20% and sell them subject-to /owner-finance on 3-5 yr balloons.

So, I have been learning about subject to deals and other seller financing strategies that I believe will help me in my real estate investing career, but I have questions about this strategy.I asked my title agent if she knew how to close a subject to deal and she said she does.

Generally speaking the 5GHz band is better, but it is also subject to more interference.

Jay Conner is known as the Private Money Authority and is doing a 3-Part Free series of training on how to do real estate during the Coronavirus crisis.  
You can view parts 1 and 2 on Youtube:
Part 1 on Raising Pri...

If they are all brand new, keep in mind (for now) they are not subject to Los Angeles rent control and for the first 15 years not subject to state rent control. 

You're subject to 20% withholding for taxes if you take any money out of your 401(k) and pay it to yourself.

There are some sample manufactured home purchase agreements in books on the subject.

Student housing may be tough right now, with school closed down, but at least accumulate all the knowledge you can now on the subject.