Hello, it is really time consuming for me to analyze each property by manually entering its data to calculate the return.  Is there any software where I can filter out properties below a certain return?  I want to be ...

Interest rates between a HEL and a refi are comparable, the equity in the property is equal to the value of the property and I only need about 50% to purchase another property.

So the choice of tenant would be key.On the flip side, reasons to hold: a very low mortgage rate; probably not the case. 

I think most investors want to win on more than just the interest rate.

When evaluating markets for rental properties, there are a lot of factors to consider: population growth, employment rates, rent to price ratio/GRM/Cap Rate, rent trends, vacancy rates, etc. 

The only taxes I remit directly now are the tiny town tax they implemented of 1%.I just take my net income spreadsheet and calculate the 1% and give them a check.

Also, keep in mind if it causes an undue burden on you or is too costly you can deny them. for example, if your insurance company says that dog breed is on the ban list then you need to find out how much it will cost to insure them. if the rates go up because of the dog then you can deny them based on the undue burden. 

Raising your credit score will get you far better rates personally as well as with private lenders for your LLC. 

Or put in your interest rate here, and your loan balance there.The art is where I think most people struggle, and I don't think this can really be done without real world knowledge.  

An other advantage of paying with credit card may be that you will not have to send the provider a 1098 tax form (only an issue if the total yearly amount is over $800).