I've got a private investor though if the right deal presents itself for a larger reno.

Some take on the business w/o having the proper systems in place to deal with low-demographic tenants & properties.We also see owners being part of the problem - expecting Class A fees, service & results from their Class C & D properties.

All businesses can hit speed bumps during any growth period. 

Once you hit a certain number of loans (check with your state dept of banking and finance or dept of business regulation), they might require you to have a license.

Now she's starting her own Interior Design business and has become entrepreneurial.

I will be able to log the 50% time of business use.

However, the average lifespan of companies is 10 to 18 years, so every private-sector job your tenants have will eventually disappear.

People ask, if a borrower has 20 - 25% down, why would they need private financing?  

@Dan GroveAs a private money lender I agree with Nicholas' sentiment.

In the latter case, I would still use QB to enter info provided by the 3P servicer and to maintain my general ledger for the lending business.