How far do i push it or go?

[Joshua D.]

So started my business about 3 years ago now have 15 houses and 17 units all together. Keep finding really good deals everyone is telling me and I should keep going. Easy to say when its not your money or business. So I have 300k line of credit available right now gonna use most of it to finish up rest of my properties and once done will have 500k available to use with around 424k debt and 1.1 million worth. So i keep finding deals with my direct mail and every marketing avenue i use. But I wonder are these properties really worth what the appraisals are coming back for and what my real estate agent is saying they are worth? Seems to good to be true really. Do i keep going and buying and renting or do i hold off and slow down? Please help feel crazy here. Alot on the line i dont know i need help. Any input would be great?