RREither way could work, IF you have the discipline to put that same spare $50k over three years into an account that gives you even less interest than you'd be saving by paying down the extra $50k.Of course, I'm assuming borrowing 100% on the uniquely great deal, so I'm not anti-borrowing.

At that time it was only common for students or for renting out a spare room in your own house.

While having read thousands of forums and listened to nearly every podcast in my spare time, I have finally saved a significant amount of startup capital to launch my investing career.I've been managing AirBnB rentals for the past two years during college here in Santa Barbara, CA, and have saved about 80k to invest in some larger deals.I split my time between Santa Barbara as well as Lake Tahoe, and have been on the deal hunt for the past few months analyzing nearly everything on the market.

I work full time, but actively participate in rental (I manage) and wholesale at my spare time.

I keep a few motor and start/run caps at my house, as well as nozzles and electrodes for the oil furnaces, a thermostat, and a spare transformer.

It would take me a full weekend of writing in my spare time to do 50 letters (with envelopes and stamps). 

I rent out the spare rooms in my house and the contract I use is state-specific from NOLO.

It also let's us have a stable means of income so we can purchase / turn properties around quicker.The investor route will let us get people involved who don't have a spare $60k to invest.

For research in your spare time, here are three names that were viciously criticized at their onset: Tesla Motor Co., Space X and Reddit.

Sure they are fine for a SFH and maybe a 2-4 unit residential property, but would be a nightmare beyond that.We maintain a pool of spare lock sets for each building and swap them between tenants ... we also have a separate set of deadbolts we put on during renovations which are keyed for our trades.In our properties where we have migrated to electronic locks, we simply deactivate the old access codes when a tenant leaves.