Would I then start applying for DSCR loans?

I applied for a spot in a mobile home park and was rejected.

Also, if the title is held by an LLC when you apply for the legal residence exemption for property taxes, it will be denied (see below).Property in South Carolina is taxed using a millage system, based on the assessed value of the property.

I currently have one on my second rental and the strategy above doesn't apply.

In our opinion, an investor should only work with agents that meet at least one of the following:1) Own rentals themselves for at least 3 years, at least one of them they bought below market.2) Have a 3-5 year track record of rental transactions, that they can document.3) Know how to calculate 1% Rule, ROI, NOI, etc. and demonstrate how to actually apply them to assist an investor client.4) Have access to tired investors selling their rentals.5) (what can you add here?)

If I were to buy it, would I have to apply for the license with the city, or is the license for the property and not the owner?

This doesn’t apply for people who do arbitrage or who manage their own properties.

If she agrees to give him the 1 month of returned deposit money, then the other month can be kept by you and applied to the new lease's deposit. 

I have found the rental property codes but no specifics on cost or how to apply for a rental license or certificate of compliance-not even on LARA.

When applying for a joint mortgage in California, lenders will typically assess both of your financial qualifications individually and consider the property's use as both a primary and secondary residence.